Home / 1,231,398,266.59-1,699,308,606.09-666,878,573.26

Finding the Fourth Proportional to 1,231,398,266.59, 1,699,308,606.09 and 666,878,573.26

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Solution

The fourth proportional to 1,231,398,266.59, 1,699,308,606.09 and 666,878,573.26 is: 920,281,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,398,266.59 : 1,699,308,606.09 = 666,878,573.26 : x
  2. Step 2: Convert to fraction form
    1,231,398,266.59/1,699,308,606.09 = 666,878,573.26/x
  3. Step 3: Cross multiply
    1,231,398,266.59x = 1,699,308,606.09 × 666,878,573.26
  4. Step 4: Simplify right side
    1,231,398,266.59x = 1,133,232,498,757,738,496
  5. Step 5: Solve for x
    x = 1,133,232,498,757,738,496/1,231,398,266.59
  6. Step 6: Final answer
    x = 920,281,057.32

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Half scale
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Double scale
Find fourth proportional to 1,231,398,267.59, 1,699,308,607.47 and 666,878,574.26
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.