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Finding the Fourth Proportional to 391,141,808,577.90, 586,712,712,866.85 and 391,141,808,577.90

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Solution

The fourth proportional to 391,141,808,577.90, 586,712,712,866.85 and 391,141,808,577.90 is: 586,712,712,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,141,808,577.90 : 586,712,712,866.85 = 391,141,808,577.90 : x
  2. Step 2: Convert to fraction form
    391,141,808,577.90/586,712,712,866.85 = 391,141,808,577.90/x
  3. Step 3: Cross multiply
    391,141,808,577.90x = 586,712,712,866.85 × 391,141,808,577.90
  4. Step 4: Simplify right side
    391,141,808,577.90x = 229,487,871,626,385,853,251,584
  5. Step 5: Solve for x
    x = 229,487,871,626,385,853,251,584/391,141,808,577.90
  6. Step 6: Final answer
    x = 586,712,712,866.85

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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.