Home / 79,804,915.20-119,707,372.80-43,399,238.40

Finding the Fourth Proportional to 79,804,915.20, 119,707,372.80 and 43,399,238.40

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Solution

The fourth proportional to 79,804,915.20, 119,707,372.80 and 43,399,238.40 is: 65,098,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,804,915.20 : 119,707,372.80 = 43,399,238.40 : x
  2. Step 2: Convert to fraction form
    79,804,915.20/119,707,372.80 = 43,399,238.40/x
  3. Step 3: Cross multiply
    79,804,915.20x = 119,707,372.80 × 43,399,238.40
  4. Step 4: Simplify right side
    79,804,915.20x = 5,195,208,810,384,875
  5. Step 5: Solve for x
    x = 5,195,208,810,384,875/79,804,915.20
  6. Step 6: Final answer
    x = 65,098,857.60

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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.