Home / 521,086,068.05-719,111,267.49-282,941,289.85

Finding the Fourth Proportional to 521,086,068.05, 719,111,267.49 and 282,941,289.85

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Solution

The fourth proportional to 521,086,068.05, 719,111,267.49 and 282,941,289.85 is: 390,465,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,086,068.05 : 719,111,267.49 = 282,941,289.85 : x
  2. Step 2: Convert to fraction form
    521,086,068.05/719,111,267.49 = 282,941,289.85/x
  3. Step 3: Cross multiply
    521,086,068.05x = 719,111,267.49 × 282,941,289.85
  4. Step 4: Simplify right side
    521,086,068.05x = 203,466,269,564,278,720
  5. Step 5: Solve for x
    x = 203,466,269,564,278,720/521,086,068.05
  6. Step 6: Final answer
    x = 390,465,763.80

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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.