Home / 99,643,550.30-149,488,945.05-51,128,891.90

Finding the Fourth Proportional to 99,643,550.30, 149,488,945.05 and 51,128,891.90

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Solution

The fourth proportional to 99,643,550.30, 149,488,945.05 and 51,128,891.90 is: 76,705,457.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,550.30 : 149,488,945.05 = 51,128,891.90 : x
  2. Step 2: Convert to fraction form
    99,643,550.30/149,488,945.05 = 51,128,891.90/x
  3. Step 3: Cross multiply
    99,643,550.30x = 149,488,945.05 × 51,128,891.90
  4. Step 4: Simplify right side
    99,643,550.30x = 7,643,204,111,706,490
  5. Step 5: Solve for x
    x = 7,643,204,111,706,490/99,643,550.30
  6. Step 6: Final answer
    x = 76,705,457.49

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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.