Home / 1,231,398,251.55-1,699,308,585.36-666,878,558.22

Finding the Fourth Proportional to 1,231,398,251.55, 1,699,308,585.36 and 666,878,558.22

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Solution

The fourth proportional to 1,231,398,251.55, 1,699,308,585.36 and 666,878,558.22 is: 920,281,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,398,251.55 : 1,699,308,585.36 = 666,878,558.22 : x
  2. Step 2: Convert to fraction form
    1,231,398,251.55/1,699,308,585.36 = 666,878,558.22/x
  3. Step 3: Cross multiply
    1,231,398,251.55x = 1,699,308,585.36 × 666,878,558.22
  4. Step 4: Simplify right side
    1,231,398,251.55x = 1,133,232,459,375,744,640
  5. Step 5: Solve for x
    x = 1,133,232,459,375,744,640/1,231,398,251.55
  6. Step 6: Final answer
    x = 920,281,036.58

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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.