Home / 765,413,821.40-1,148,566,332.96-322,728,741.29

Finding the Fourth Proportional to 765,413,821.40, 1,148,566,332.96 and 322,728,741.29

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Solution

The fourth proportional to 765,413,821.40, 1,148,566,332.96 and 322,728,741.29 is: 484,280,994.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,413,821.40 : 1,148,566,332.96 = 322,728,741.29 : x
  2. Step 2: Convert to fraction form
    765,413,821.40/1,148,566,332.96 = 322,728,741.29/x
  3. Step 3: Cross multiply
    765,413,821.40x = 1,148,566,332.96 × 322,728,741.29
  4. Step 4: Simplify right side
    765,413,821.40x = 370,675,366,927,123,264
  5. Step 5: Solve for x
    x = 370,675,366,927,123,264/765,413,821.40
  6. Step 6: Final answer
    x = 484,280,994.89

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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.