Home / 142,920,007.60-214,380,011.40-88,500,449.20

Finding the Fourth Proportional to 142,920,007.60, 214,380,011.40 and 88,500,449.20

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Solution

The fourth proportional to 142,920,007.60, 214,380,011.40 and 88,500,449.20 is: 132,750,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,920,007.60 : 214,380,011.40 = 88,500,449.20 : x
  2. Step 2: Convert to fraction form
    142,920,007.60/214,380,011.40 = 88,500,449.20/x
  3. Step 3: Cross multiply
    142,920,007.60x = 214,380,011.40 × 88,500,449.20
  4. Step 4: Simplify right side
    142,920,007.60x = 18,972,727,308,401,124
  5. Step 5: Solve for x
    x = 18,972,727,308,401,124/142,920,007.60
  6. Step 6: Final answer
    x = 132,750,673.80

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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.