Home / 66,597,830.72-99,894,465.12-28,234,640.96

Finding the Fourth Proportional to 66,597,830.72, 99,894,465.12 and 28,234,640.96

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Solution

The fourth proportional to 66,597,830.72, 99,894,465.12 and 28,234,640.96 is: 42,350,994.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,597,830.72 : 99,894,465.12 = 28,234,640.96 : x
  2. Step 2: Convert to fraction form
    66,597,830.72/99,894,465.12 = 28,234,640.96/x
  3. Step 3: Cross multiply
    66,597,830.72x = 99,894,465.12 × 28,234,640.96
  4. Step 4: Simplify right side
    66,597,830.72x = 2,820,484,356,554,443.50
  5. Step 5: Solve for x
    x = 2,820,484,356,554,443.50/66,597,830.72
  6. Step 6: Final answer
    x = 42,350,994.41

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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.