Home / 99,011,019.20-148,516,528.80-90,500,964.80

Finding the Fourth Proportional to 99,011,019.20, 148,516,528.80 and 90,500,964.80

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Solution

The fourth proportional to 99,011,019.20, 148,516,528.80 and 90,500,964.80 is: 135,751,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,011,019.20 : 148,516,528.80 = 90,500,964.80 : x
  2. Step 2: Convert to fraction form
    99,011,019.20/148,516,528.80 = 90,500,964.80/x
  3. Step 3: Cross multiply
    99,011,019.20x = 148,516,528.80 × 90,500,964.80
  4. Step 4: Simplify right side
    99,011,019.20x = 13,440,889,145,146,986
  5. Step 5: Solve for x
    x = 13,440,889,145,146,986/99,011,019.20
  6. Step 6: Final answer
    x = 135,751,447.20

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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.