Home / 99,643,473.30-149,488,829.55-51,128,814.90

Finding the Fourth Proportional to 99,643,473.30, 149,488,829.55 and 51,128,814.90

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Solution

The fourth proportional to 99,643,473.30, 149,488,829.55 and 51,128,814.90 is: 76,705,341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,473.30 : 149,488,829.55 = 51,128,814.90 : x
  2. Step 2: Convert to fraction form
    99,643,473.30/149,488,829.55 = 51,128,814.90/x
  3. Step 3: Cross multiply
    99,643,473.30x = 149,488,829.55 × 51,128,814.90
  4. Step 4: Simplify right side
    99,643,473.30x = 7,643,186,695,679,601
  5. Step 5: Solve for x
    x = 7,643,186,695,679,601/99,643,473.30
  6. Step 6: Final answer
    x = 76,705,341.98

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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.