Home / 101,728,526.85-140,412,808.53-66,445,583.76

Finding the Fourth Proportional to 101,728,526.85, 140,412,808.53 and 66,445,583.76

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Solution

The fourth proportional to 101,728,526.85, 140,412,808.53 and 66,445,583.76 is: 91,712,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,728,526.85 : 140,412,808.53 = 66,445,583.76 : x
  2. Step 2: Convert to fraction form
    101,728,526.85/140,412,808.53 = 66,445,583.76/x
  3. Step 3: Cross multiply
    101,728,526.85x = 140,412,808.53 × 66,445,583.76
  4. Step 4: Simplify right side
    101,728,526.85x = 9,329,811,030,156,958
  5. Step 5: Solve for x
    x = 9,329,811,030,156,958/101,728,526.85
  6. Step 6: Final answer
    x = 91,712,829.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.