Home / 145,543,132.80-218,314,699.20-72,771,145.20

Finding the Fourth Proportional to 145,543,132.80, 218,314,699.20 and 72,771,145.20

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Solution

The fourth proportional to 145,543,132.80, 218,314,699.20 and 72,771,145.20 is: 109,156,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,543,132.80 : 218,314,699.20 = 72,771,145.20 : x
  2. Step 2: Convert to fraction form
    145,543,132.80/218,314,699.20 = 72,771,145.20/x
  3. Step 3: Cross multiply
    145,543,132.80x = 218,314,699.20 × 72,771,145.20
  4. Step 4: Simplify right side
    145,543,132.80x = 15,887,010,674,777,524
  5. Step 5: Solve for x
    x = 15,887,010,674,777,524/145,543,132.80
  6. Step 6: Final answer
    x = 109,156,717.80

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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.