Home / 775,807,197.65-1,070,636,609.09-423,405,805.31

Finding the Fourth Proportional to 775,807,197.65, 1,070,636,609.09 and 423,405,805.31

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Solution

The fourth proportional to 775,807,197.65, 1,070,636,609.09 and 423,405,805.31 is: 584,312,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,807,197.65 : 1,070,636,609.09 = 423,405,805.31 : x
  2. Step 2: Convert to fraction form
    775,807,197.65/1,070,636,609.09 = 423,405,805.31/x
  3. Step 3: Cross multiply
    775,807,197.65x = 1,070,636,609.09 × 423,405,805.31
  4. Step 4: Simplify right side
    775,807,197.65x = 453,313,755,664,002,112
  5. Step 5: Solve for x
    x = 453,313,755,664,002,112/775,807,197.65
  6. Step 6: Final answer
    x = 584,312,387.20

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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.