Home / 85,291,908.40-127,937,862.60-67,152,055.60

Finding the Fourth Proportional to 85,291,908.40, 127,937,862.60 and 67,152,055.60

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Solution

The fourth proportional to 85,291,908.40, 127,937,862.60 and 67,152,055.60 is: 100,728,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,291,908.40 : 127,937,862.60 = 67,152,055.60 : x
  2. Step 2: Convert to fraction form
    85,291,908.40/127,937,862.60 = 67,152,055.60/x
  3. Step 3: Cross multiply
    85,291,908.40x = 127,937,862.60 × 67,152,055.60
  4. Step 4: Simplify right side
    85,291,908.40x = 8,591,290,462,660,359
  5. Step 5: Solve for x
    x = 8,591,290,462,660,359/85,291,908.40
  6. Step 6: Final answer
    x = 100,728,083.40

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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.