Home / 131,429,793.60-196,766,776.80-80,411,457.60

Finding the Fourth Proportional to 131,429,793.60, 196,766,776.80 and 80,411,457.60

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Solution

The fourth proportional to 131,429,793.60, 196,766,776.80 and 80,411,457.60 is: 120,385,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429,793.60 : 196,766,776.80 = 80,411,457.60 : x
  2. Step 2: Convert to fraction form
    131,429,793.60/196,766,776.80 = 80,411,457.60/x
  3. Step 3: Cross multiply
    131,429,793.60x = 196,766,776.80 × 80,411,457.60
  4. Step 4: Simplify right side
    131,429,793.60x = 15,822,303,329,741,864
  5. Step 5: Solve for x
    x = 15,822,303,329,741,864/131,429,793.60
  6. Step 6: Final answer
    x = 120,385,971.07

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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.