Home / 42,625,803.20-63,938,704.80-18,691,275.20

Finding the Fourth Proportional to 42,625,803.20, 63,938,704.80 and 18,691,275.20

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Solution

The fourth proportional to 42,625,803.20, 63,938,704.80 and 18,691,275.20 is: 28,036,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,625,803.20 : 63,938,704.80 = 18,691,275.20 : x
  2. Step 2: Convert to fraction form
    42,625,803.20/63,938,704.80 = 18,691,275.20/x
  3. Step 3: Cross multiply
    42,625,803.20x = 63,938,704.80 × 18,691,275.20
  4. Step 4: Simplify right side
    42,625,803.20x = 1,195,095,927,348,360.75
  5. Step 5: Solve for x
    x = 1,195,095,927,348,360.75/42,625,803.20
  6. Step 6: Final answer
    x = 28,036,912.80

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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.