Home / 99,513,231.80-149,336,202.90-45,632,809.40

Finding the Fourth Proportional to 99,513,231.80, 149,336,202.90 and 45,632,809.40

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Solution

The fourth proportional to 99,513,231.80, 149,336,202.90 and 45,632,809.40 is: 68,479,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,513,231.80 : 149,336,202.90 = 45,632,809.40 : x
  2. Step 2: Convert to fraction form
    99,513,231.80/149,336,202.90 = 45,632,809.40/x
  3. Step 3: Cross multiply
    99,513,231.80x = 149,336,202.90 × 45,632,809.40
  4. Step 4: Simplify right side
    99,513,231.80x = 6,814,630,483,455,427
  5. Step 5: Solve for x
    x = 6,814,630,483,455,427/99,513,231.80
  6. Step 6: Final answer
    x = 68,479,641.96

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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.