Home / 66,445,600.80-99,668,401.20-39,123,847.20

Finding the Fourth Proportional to 66,445,600.80, 99,668,401.20 and 39,123,847.20

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Solution

The fourth proportional to 66,445,600.80, 99,668,401.20 and 39,123,847.20 is: 58,685,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445,600.80 : 99,668,401.20 = 39,123,847.20 : x
  2. Step 2: Convert to fraction form
    66,445,600.80/99,668,401.20 = 39,123,847.20/x
  3. Step 3: Cross multiply
    66,445,600.80x = 99,668,401.20 × 39,123,847.20
  4. Step 4: Simplify right side
    66,445,600.80x = 3,899,411,299,217,097
  5. Step 5: Solve for x
    x = 3,899,411,299,217,097/66,445,600.80
  6. Step 6: Final answer
    x = 58,685,770.80

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1.5x scale

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.