Home / 144,367,584.80-216,551,377.20-128,495,213.60

Finding the Fourth Proportional to 144,367,584.80, 216,551,377.20 and 128,495,213.60

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Solution

The fourth proportional to 144,367,584.80, 216,551,377.20 and 128,495,213.60 is: 192,742,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,367,584.80 : 216,551,377.20 = 128,495,213.60 : x
  2. Step 2: Convert to fraction form
    144,367,584.80/216,551,377.20 = 128,495,213.60/x
  3. Step 3: Cross multiply
    144,367,584.80x = 216,551,377.20 × 128,495,213.60
  4. Step 4: Simplify right side
    144,367,584.80x = 27,825,815,468,688,168
  5. Step 5: Solve for x
    x = 27,825,815,468,688,168/144,367,584.80
  6. Step 6: Final answer
    x = 192,742,820.40

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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.