Home / 66,438,685.70-99,672,025.35-28,080,455.30

Finding the Fourth Proportional to 66,438,685.70, 99,672,025.35 and 28,080,455.30

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Solution

The fourth proportional to 66,438,685.70, 99,672,025.35 and 28,080,455.30 is: 42,126,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,438,685.70 : 99,672,025.35 = 28,080,455.30 : x
  2. Step 2: Convert to fraction form
    66,438,685.70/99,672,025.35 = 28,080,455.30/x
  3. Step 3: Cross multiply
    66,438,685.70x = 99,672,025.35 × 28,080,455.30
  4. Step 4: Simplify right side
    66,438,685.70x = 2,798,835,852,501,142
  5. Step 5: Solve for x
    x = 2,798,835,852,501,142/66,438,685.70
  6. Step 6: Final answer
    x = 42,126,598.73

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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.