Home / 66,445,354.05-99,668,031.08-39,123,600.45

Finding the Fourth Proportional to 66,445,354.05, 99,668,031.08 and 39,123,600.45

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Solution

The fourth proportional to 66,445,354.05, 99,668,031.08 and 39,123,600.45 is: 58,685,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445,354.05 : 99,668,031.08 = 39,123,600.45 : x
  2. Step 2: Convert to fraction form
    66,445,354.05/99,668,031.08 = 39,123,600.45/x
  3. Step 3: Cross multiply
    66,445,354.05x = 99,668,031.08 × 39,123,600.45
  4. Step 4: Simplify right side
    66,445,354.05x = 3,899,372,225,416,484.50
  5. Step 5: Solve for x
    x = 3,899,372,225,416,484.50/66,445,354.05
  6. Step 6: Final answer
    x = 58,685,400.68

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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.