Home / 101,728,527.85-140,412,809.91-66,445,584.76

Finding the Fourth Proportional to 101,728,527.85, 140,412,809.91 and 66,445,584.76

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Solution

The fourth proportional to 101,728,527.85, 140,412,809.91 and 66,445,584.76 is: 91,712,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,728,527.85 : 140,412,809.91 = 66,445,584.76 : x
  2. Step 2: Convert to fraction form
    101,728,527.85/140,412,809.91 = 66,445,584.76/x
  3. Step 3: Cross multiply
    101,728,527.85x = 140,412,809.91 × 66,445,584.76
  4. Step 4: Simplify right side
    101,728,527.85x = 9,329,811,262,264,672
  5. Step 5: Solve for x
    x = 9,329,811,262,264,672/101,728,527.85
  6. Step 6: Final answer
    x = 91,712,830.80

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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.