Home / 144,518,381.10-199,435,584.90-78,438,903.48

Finding the Fourth Proportional to 144,518,381.10, 199,435,584.90 and 78,438,903.48

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Solution

The fourth proportional to 144,518,381.10, 199,435,584.90 and 78,438,903.48 is: 108,245,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518,381.10 : 199,435,584.90 = 78,438,903.48 : x
  2. Step 2: Convert to fraction form
    144,518,381.10/199,435,584.90 = 78,438,903.48/x
  3. Step 3: Cross multiply
    144,518,381.10x = 199,435,584.90 × 78,438,903.48
  4. Step 4: Simplify right side
    144,518,381.10x = 15,643,508,594,448,446
  5. Step 5: Solve for x
    x = 15,643,508,594,448,446/144,518,381.10
  6. Step 6: Final answer
    x = 108,245,805.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.