Home / 85,202,440.90-127,803,661.35-74,679,909.10

Finding the Fourth Proportional to 85,202,440.90, 127,803,661.35 and 74,679,909.10

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Solution

The fourth proportional to 85,202,440.90, 127,803,661.35 and 74,679,909.10 is: 112,019,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,440.90 : 127,803,661.35 = 74,679,909.10 : x
  2. Step 2: Convert to fraction form
    85,202,440.90/127,803,661.35 = 74,679,909.10/x
  3. Step 3: Cross multiply
    85,202,440.90x = 127,803,661.35 × 74,679,909.10
  4. Step 4: Simplify right side
    85,202,440.90x = 9,544,365,812,265,182
  5. Step 5: Solve for x
    x = 9,544,365,812,265,182/85,202,440.90
  6. Step 6: Final answer
    x = 112,019,863.65

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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.