Home / 649,395,689.80-974,231,364.30-212,664,114.76

Finding the Fourth Proportional to 649,395,689.80, 974,231,364.30 and 212,664,114.76

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Solution

The fourth proportional to 649,395,689.80, 974,231,364.30 and 212,664,114.76 is: 319,041,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,395,689.80 : 974,231,364.30 = 212,664,114.76 : x
  2. Step 2: Convert to fraction form
    649,395,689.80/974,231,364.30 = 212,664,114.76/x
  3. Step 3: Cross multiply
    649,395,689.80x = 974,231,364.30 × 212,664,114.76
  4. Step 4: Simplify right side
    649,395,689.80x = 207,184,050,660,286,560
  5. Step 5: Solve for x
    x = 207,184,050,660,286,560/649,395,689.80
  6. Step 6: Final answer
    x = 319,041,308.58

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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.