Home / 165,007,959.60-247,348,643.40-72,941,674.80

Finding the Fourth Proportional to 165,007,959.60, 247,348,643.40 and 72,941,674.80

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Solution

The fourth proportional to 165,007,959.60, 247,348,643.40 and 72,941,674.80 is: 109,340,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,007,959.60 : 247,348,643.40 = 72,941,674.80 : x
  2. Step 2: Convert to fraction form
    165,007,959.60/247,348,643.40 = 72,941,674.80/x
  3. Step 3: Cross multiply
    165,007,959.60x = 247,348,643.40 × 72,941,674.80
  4. Step 4: Simplify right side
    165,007,959.60x = 18,042,024,309,103,968
  5. Step 5: Solve for x
    x = 18,042,024,309,103,968/165,007,959.60
  6. Step 6: Final answer
    x = 109,340,327.30

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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.