Home / 131,140,211.10-196,710,316.65-80,121,875.10

Finding the Fourth Proportional to 131,140,211.10, 196,710,316.65 and 80,121,875.10

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Solution

The fourth proportional to 131,140,211.10, 196,710,316.65 and 80,121,875.10 is: 120,182,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,140,211.10 : 196,710,316.65 = 80,121,875.10 : x
  2. Step 2: Convert to fraction form
    131,140,211.10/196,710,316.65 = 80,121,875.10/x
  3. Step 3: Cross multiply
    131,140,211.10x = 196,710,316.65 × 80,121,875.10
  4. Step 4: Simplify right side
    131,140,211.10x = 15,760,799,421,512,750
  5. Step 5: Solve for x
    x = 15,760,799,421,512,750/131,140,211.10
  6. Step 6: Final answer
    x = 120,182,812.65

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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.