Home / 74,358,520.80-111,537,781.20-66,068,041.20

Finding the Fourth Proportional to 74,358,520.80, 111,537,781.20 and 66,068,041.20

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Solution

The fourth proportional to 74,358,520.80, 111,537,781.20 and 66,068,041.20 is: 99,102,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,358,520.80 : 111,537,781.20 = 66,068,041.20 : x
  2. Step 2: Convert to fraction form
    74,358,520.80/111,537,781.20 = 66,068,041.20/x
  3. Step 3: Cross multiply
    74,358,520.80x = 111,537,781.20 × 66,068,041.20
  4. Step 4: Simplify right side
    74,358,520.80x = 7,369,082,723,678,186
  5. Step 5: Solve for x
    x = 7,369,082,723,678,186/74,358,520.80
  6. Step 6: Final answer
    x = 99,102,061.80

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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.