Home / 389,391,773,041.92-537,363,801,916.46-215,779,812,472.62

Finding the Fourth Proportional to 389,391,773,041.92, 537,363,801,916.46 and 215,779,812,472.62

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Solution

The fourth proportional to 389,391,773,041.92, 537,363,801,916.46 and 215,779,812,472.62 is: 297,777,889,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,391,773,041.92 : 537,363,801,916.46 = 215,779,812,472.62 : x
  2. Step 2: Convert to fraction form
    389,391,773,041.92/537,363,801,916.46 = 215,779,812,472.62/x
  3. Step 3: Cross multiply
    389,391,773,041.92x = 537,363,801,916.46 × 215,779,812,472.62
  4. Step 4: Simplify right side
    389,391,773,041.92x = 115,952,260,407,107,864,494,080
  5. Step 5: Solve for x
    x = 115,952,260,407,107,864,494,080/389,391,773,041.92
  6. Step 6: Final answer
    x = 297,777,889,607.92

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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.