Home / 649,540,988.60-974,311,482.90-511,791,481.40

Finding the Fourth Proportional to 649,540,988.60, 974,311,482.90 and 511,791,481.40

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Solution

The fourth proportional to 649,540,988.60, 974,311,482.90 and 511,791,481.40 is: 767,687,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,540,988.60 : 974,311,482.90 = 511,791,481.40 : x
  2. Step 2: Convert to fraction form
    649,540,988.60/974,311,482.90 = 511,791,481.40/x
  3. Step 3: Cross multiply
    649,540,988.60x = 974,311,482.90 × 511,791,481.40
  4. Step 4: Simplify right side
    649,540,988.60x = 498,644,317,178,421,760
  5. Step 5: Solve for x
    x = 498,644,317,178,421,760/649,540,988.60
  6. Step 6: Final answer
    x = 767,687,222.10

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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.