Home / 6,985,479.18-10,478,221.14-3,142,813.80

Finding the Fourth Proportional to 6,985,479.18, 10,478,221.14 and 3,142,813.80

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Solution

The fourth proportional to 6,985,479.18, 10,478,221.14 and 3,142,813.80 is: 4,714,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,479.18 : 10,478,221.14 = 3,142,813.80 : x
  2. Step 2: Convert to fraction form
    6,985,479.18/10,478,221.14 = 3,142,813.80/x
  3. Step 3: Cross multiply
    6,985,479.18x = 10,478,221.14 × 3,142,813.80
  4. Step 4: Simplify right side
    6,985,479.18x = 32,931,097,998,243.73
  5. Step 5: Solve for x
    x = 32,931,097,998,243.73/6,985,479.18
  6. Step 6: Final answer
    x = 4,714,221.77

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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.