Home / 144,367,604.80-216,551,407.20-128,495,233.60

Finding the Fourth Proportional to 144,367,604.80, 216,551,407.20 and 128,495,233.60

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Solution

The fourth proportional to 144,367,604.80, 216,551,407.20 and 128,495,233.60 is: 192,742,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,367,604.80 : 216,551,407.20 = 128,495,233.60 : x
  2. Step 2: Convert to fraction form
    144,367,604.80/216,551,407.20 = 128,495,233.60/x
  3. Step 3: Cross multiply
    144,367,604.80x = 216,551,407.20 × 128,495,233.60
  4. Step 4: Simplify right side
    144,367,604.80x = 27,825,823,654,572,720
  5. Step 5: Solve for x
    x = 27,825,823,654,572,720/144,367,604.80
  6. Step 6: Final answer
    x = 192,742,850.40

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Similar ratio
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1.5x scale

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.