Home / 99,601,346.70-149,402,020.05-70,376,028.30

Finding the Fourth Proportional to 99,601,346.70, 149,402,020.05 and 70,376,028.30

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Solution

The fourth proportional to 99,601,346.70, 149,402,020.05 and 70,376,028.30 is: 105,564,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,601,346.70 : 149,402,020.05 = 70,376,028.30 : x
  2. Step 2: Convert to fraction form
    99,601,346.70/149,402,020.05 = 70,376,028.30/x
  3. Step 3: Cross multiply
    99,601,346.70x = 149,402,020.05 × 70,376,028.30
  4. Step 4: Simplify right side
    99,601,346.70x = 10,514,320,791,115,968
  5. Step 5: Solve for x
    x = 10,514,320,791,115,968/99,601,346.70
  6. Step 6: Final answer
    x = 105,564,042.45

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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.