Home / 144,518,518.02-199,435,773.61-78,439,040.20

Finding the Fourth Proportional to 144,518,518.02, 199,435,773.61 and 78,439,040.20

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Solution

The fourth proportional to 144,518,518.02, 199,435,773.61 and 78,439,040.20 is: 108,245,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518,518.02 : 199,435,773.61 = 78,439,040.20 : x
  2. Step 2: Convert to fraction form
    144,518,518.02/199,435,773.61 = 78,439,040.20/x
  3. Step 3: Cross multiply
    144,518,518.02x = 199,435,773.61 × 78,439,040.20
  4. Step 4: Simplify right side
    144,518,518.02x = 15,643,550,663,512,890
  5. Step 5: Solve for x
    x = 15,643,550,663,512,890/144,518,518.02
  6. Step 6: Final answer
    x = 108,245,994.20

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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.