Home / 1,231,398,253.04-1,699,308,587.43-666,878,559.71

Finding the Fourth Proportional to 1,231,398,253.04, 1,699,308,587.43 and 666,878,559.71

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Solution

The fourth proportional to 1,231,398,253.04, 1,699,308,587.43 and 666,878,559.71 is: 920,281,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,398,253.04 : 1,699,308,587.43 = 666,878,559.71 : x
  2. Step 2: Convert to fraction form
    1,231,398,253.04/1,699,308,587.43 = 666,878,559.71/x
  3. Step 3: Cross multiply
    1,231,398,253.04x = 1,699,308,587.43 × 666,878,559.71
  4. Step 4: Simplify right side
    1,231,398,253.04x = 1,133,232,463,279,656,576
  5. Step 5: Solve for x
    x = 1,133,232,463,279,656,576/1,231,398,253.04
  6. Step 6: Final answer
    x = 920,281,038.64

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Half scale
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Double scale
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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.