Home / 142,439,834.60-213,659,751.90-140,928,180.20

Finding the Fourth Proportional to 142,439,834.60, 213,659,751.90 and 140,928,180.20

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Solution

The fourth proportional to 142,439,834.60, 213,659,751.90 and 140,928,180.20 is: 211,392,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,439,834.60 : 213,659,751.90 = 140,928,180.20 : x
  2. Step 2: Convert to fraction form
    142,439,834.60/213,659,751.90 = 140,928,180.20/x
  3. Step 3: Cross multiply
    142,439,834.60x = 213,659,751.90 × 140,928,180.20
  4. Step 4: Simplify right side
    142,439,834.60x = 30,110,680,017,250,492
  5. Step 5: Solve for x
    x = 30,110,680,017,250,492/142,439,834.60
  6. Step 6: Final answer
    x = 211,392,270.30

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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.