Home / 12,490,671.80-18,736,007.70-9,656,319.80

Finding the Fourth Proportional to 12,490,671.80, 18,736,007.70 and 9,656,319.80

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Solution

The fourth proportional to 12,490,671.80, 18,736,007.70 and 9,656,319.80 is: 14,484,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490,671.80 : 18,736,007.70 = 9,656,319.80 : x
  2. Step 2: Convert to fraction form
    12,490,671.80/18,736,007.70 = 9,656,319.80/x
  3. Step 3: Cross multiply
    12,490,671.80x = 18,736,007.70 × 9,656,319.80
  4. Step 4: Simplify right side
    12,490,671.80x = 180,920,882,126,462.47
  5. Step 5: Solve for x
    x = 180,920,882,126,462.47/12,490,671.80
  6. Step 6: Final answer
    x = 14,484,479.70

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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.