Home / 620,773,320.92-931,232,020.08-206,287,132.28

Finding the Fourth Proportional to 620,773,320.92, 931,232,020.08 and 206,287,132.28

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Solution

The fourth proportional to 620,773,320.92, 931,232,020.08 and 206,287,132.28 is: 309,454,637.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,773,320.92 : 931,232,020.08 = 206,287,132.28 : x
  2. Step 2: Convert to fraction form
    620,773,320.92/931,232,020.08 = 206,287,132.28/x
  3. Step 3: Cross multiply
    620,773,320.92x = 931,232,020.08 × 206,287,132.28
  4. Step 4: Simplify right side
    620,773,320.92x = 192,101,182,909,614,592
  5. Step 5: Solve for x
    x = 192,101,182,909,614,592/620,773,320.92
  6. Step 6: Final answer
    x = 309,454,637.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.