Home / 527,941,037.97-728,553,914.85-289,779,169.11

Finding the Fourth Proportional to 527,941,037.97, 728,553,914.85 and 289,779,169.11

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Solution

The fourth proportional to 527,941,037.97, 728,553,914.85 and 289,779,169.11 is: 399,892,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,941,037.97 : 728,553,914.85 = 289,779,169.11 : x
  2. Step 2: Convert to fraction form
    527,941,037.97/728,553,914.85 = 289,779,169.11/x
  3. Step 3: Cross multiply
    527,941,037.97x = 728,553,914.85 × 289,779,169.11
  4. Step 4: Simplify right side
    527,941,037.97x = 211,119,748,097,070,720
  5. Step 5: Solve for x
    x = 211,119,748,097,070,720/527,941,037.97
  6. Step 6: Final answer
    x = 399,892,663.98

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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.