Home / 10,872,613.20-16,308,919.80-7,289,432.40

Finding the Fourth Proportional to 10,872,613.20, 16,308,919.80 and 7,289,432.40

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Solution

The fourth proportional to 10,872,613.20, 16,308,919.80 and 7,289,432.40 is: 10,934,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872,613.20 : 16,308,919.80 = 7,289,432.40 : x
  2. Step 2: Convert to fraction form
    10,872,613.20/16,308,919.80 = 7,289,432.40/x
  3. Step 3: Cross multiply
    10,872,613.20x = 16,308,919.80 × 7,289,432.40
  4. Step 4: Simplify right side
    10,872,613.20x = 118,882,768,399,121.53
  5. Step 5: Solve for x
    x = 118,882,768,399,121.53/10,872,613.20
  6. Step 6: Final answer
    x = 10,934,148.60

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1.5x scale

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.