Home / 99,644,429.30-149,490,263.55-51,129,770.90

Finding the Fourth Proportional to 99,644,429.30, 149,490,263.55 and 51,129,770.90

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Solution

The fourth proportional to 99,644,429.30, 149,490,263.55 and 51,129,770.90 is: 76,706,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,644,429.30 : 149,490,263.55 = 51,129,770.90 : x
  2. Step 2: Convert to fraction form
    99,644,429.30/149,490,263.55 = 51,129,770.90/x
  3. Step 3: Cross multiply
    99,644,429.30x = 149,490,263.55 × 51,129,770.90
  4. Step 4: Simplify right side
    99,644,429.30x = 7,643,402,927,092,121
  5. Step 5: Solve for x
    x = 7,643,402,927,092,121/99,644,429.30
  6. Step 6: Final answer
    x = 76,706,776.09

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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.