Home / 621,712,466.86-857,653,472.90-370,639,944.74

Finding the Fourth Proportional to 621,712,466.86, 857,653,472.90 and 370,639,944.74

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Solution

The fourth proportional to 621,712,466.86, 857,653,472.90 and 370,639,944.74 is: 511,298,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,712,466.86 : 857,653,472.90 = 370,639,944.74 : x
  2. Step 2: Convert to fraction form
    621,712,466.86/857,653,472.90 = 370,639,944.74/x
  3. Step 3: Cross multiply
    621,712,466.86x = 857,653,472.90 × 370,639,944.74
  4. Step 4: Simplify right side
    621,712,466.86x = 317,880,635,802,709,120
  5. Step 5: Solve for x
    x = 317,880,635,802,709,120/621,712,466.86
  6. Step 6: Final answer
    x = 511,298,474.37

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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.