Home / 103,520,258.40-155,280,387.60-31,707,343.20

Finding the Fourth Proportional to 103,520,258.40, 155,280,387.60 and 31,707,343.20

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Solution

The fourth proportional to 103,520,258.40, 155,280,387.60 and 31,707,343.20 is: 47,561,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520,258.40 : 155,280,387.60 = 31,707,343.20 : x
  2. Step 2: Convert to fraction form
    103,520,258.40/155,280,387.60 = 31,707,343.20/x
  3. Step 3: Cross multiply
    103,520,258.40x = 155,280,387.60 × 31,707,343.20
  4. Step 4: Simplify right side
    103,520,258.40x = 4,923,528,541,862,224
  5. Step 5: Solve for x
    x = 4,923,528,541,862,224/103,520,258.40
  6. Step 6: Final answer
    x = 47,561,014.80

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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.