Home / 138,606,739,375.61-191,278,423,423.50-76,808,341,301.85

Finding the Fourth Proportional to 138,606,739,375.61, 191,278,423,423.50 and 76,808,341,301.85

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Solution

The fourth proportional to 138,606,739,375.61, 191,278,423,423.50 and 76,808,341,301.85 is: 105,996,133,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,606,739,375.61 : 191,278,423,423.50 = 76,808,341,301.85 : x
  2. Step 2: Convert to fraction form
    138,606,739,375.61/191,278,423,423.50 = 76,808,341,301.85/x
  3. Step 3: Cross multiply
    138,606,739,375.61x = 191,278,423,423.50 × 76,808,341,301.85
  4. Step 4: Simplify right side
    138,606,739,375.61x = 14,691,778,429,991,969,095,680
  5. Step 5: Solve for x
    x = 14,691,778,429,991,969,095,680/138,606,739,375.61
  6. Step 6: Final answer
    x = 105,996,133,349.47

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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.