Home / 129,023,999.10-193,535,998.65-72,282,930.30

Finding the Fourth Proportional to 129,023,999.10, 193,535,998.65 and 72,282,930.30

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Solution

The fourth proportional to 129,023,999.10, 193,535,998.65 and 72,282,930.30 is: 108,424,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,023,999.10 : 193,535,998.65 = 72,282,930.30 : x
  2. Step 2: Convert to fraction form
    129,023,999.10/193,535,998.65 = 72,282,930.30/x
  3. Step 3: Cross multiply
    129,023,999.10x = 193,535,998.65 × 72,282,930.30
  4. Step 4: Simplify right side
    129,023,999.10x = 13,989,349,100,958,844
  5. Step 5: Solve for x
    x = 13,989,349,100,958,844/129,023,999.10
  6. Step 6: Final answer
    x = 108,424,395.45

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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.