Home / 66,401,432.55-99,602,148.83-20,957,322.15

Finding the Fourth Proportional to 66,401,432.55, 99,602,148.83 and 20,957,322.15

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Solution

The fourth proportional to 66,401,432.55, 99,602,148.83 and 20,957,322.15 is: 31,435,983.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,401,432.55 : 99,602,148.83 = 20,957,322.15 : x
  2. Step 2: Convert to fraction form
    66,401,432.55/99,602,148.83 = 20,957,322.15/x
  3. Step 3: Cross multiply
    66,401,432.55x = 99,602,148.83 × 20,957,322.15
  4. Step 4: Simplify right side
    66,401,432.55x = 2,087,394,319,757,769
  5. Step 5: Solve for x
    x = 2,087,394,319,757,769/66,401,432.55
  6. Step 6: Final answer
    x = 31,435,983.23

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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.