Home / 129,233,039.76-193,851,237.96-42,971,442.84

Finding the Fourth Proportional to 129,233,039.76, 193,851,237.96 and 42,971,442.84

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Solution

The fourth proportional to 129,233,039.76, 193,851,237.96 and 42,971,442.84 is: 64,457,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,233,039.76 : 193,851,237.96 = 42,971,442.84 : x
  2. Step 2: Convert to fraction form
    129,233,039.76/193,851,237.96 = 42,971,442.84/x
  3. Step 3: Cross multiply
    129,233,039.76x = 193,851,237.96 × 42,971,442.84
  4. Step 4: Simplify right side
    129,233,039.76x = 8,330,067,391,461,379
  5. Step 5: Solve for x
    x = 8,330,067,391,461,379/129,233,039.76
  6. Step 6: Final answer
    x = 64,457,722.32

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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.