Home / 72,876,008.40-109,314,012.60-19,023,320.40

Finding the Fourth Proportional to 72,876,008.40, 109,314,012.60 and 19,023,320.40

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Solution

The fourth proportional to 72,876,008.40, 109,314,012.60 and 19,023,320.40 is: 28,534,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,876,008.40 : 109,314,012.60 = 19,023,320.40 : x
  2. Step 2: Convert to fraction form
    72,876,008.40/109,314,012.60 = 19,023,320.40/x
  3. Step 3: Cross multiply
    72,876,008.40x = 109,314,012.60 × 19,023,320.40
  4. Step 4: Simplify right side
    72,876,008.40x = 2,079,515,485,899,436.75
  5. Step 5: Solve for x
    x = 2,079,515,485,899,436.75/72,876,008.40
  6. Step 6: Final answer
    x = 28,534,980.60

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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.