Home / 99,601,721.20-149,402,581.80-70,376,402.80

Finding the Fourth Proportional to 99,601,721.20, 149,402,581.80 and 70,376,402.80

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Solution

The fourth proportional to 99,601,721.20, 149,402,581.80 and 70,376,402.80 is: 105,564,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,601,721.20 : 149,402,581.80 = 70,376,402.80 : x
  2. Step 2: Convert to fraction form
    99,601,721.20/149,402,581.80 = 70,376,402.80/x
  3. Step 3: Cross multiply
    99,601,721.20x = 149,402,581.80 × 70,376,402.80
  4. Step 4: Simplify right side
    99,601,721.20x = 10,514,416,276,116,750
  5. Step 5: Solve for x
    x = 10,514,416,276,116,750/99,601,721.20
  6. Step 6: Final answer
    x = 105,564,604.20

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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.