Home / 621,602,535.77-857,807,135.57-339,344,976.55

Finding the Fourth Proportional to 621,602,535.77, 857,807,135.57 and 339,344,976.55

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Solution

The fourth proportional to 621,602,535.77, 857,807,135.57 and 339,344,976.55 is: 468,293,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,602,535.77 : 857,807,135.57 = 339,344,976.55 : x
  2. Step 2: Convert to fraction form
    621,602,535.77/857,807,135.57 = 339,344,976.55/x
  3. Step 3: Cross multiply
    621,602,535.77x = 857,807,135.57 × 339,344,976.55
  4. Step 4: Simplify right side
    621,602,535.77x = 291,092,542,298,438,592
  5. Step 5: Solve for x
    x = 291,092,542,298,438,592/621,602,535.77
  6. Step 6: Final answer
    x = 468,293,685.35

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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.