Home / 7,200,843,479.20-9,936,948,272.19-3,985,885,248.84

Finding the Fourth Proportional to 7,200,843,479.20, 9,936,948,272.19 and 3,985,885,248.84

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Solution

The fourth proportional to 7,200,843,479.20, 9,936,948,272.19 and 3,985,885,248.84 is: 5,500,402,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200,843,479.20 : 9,936,948,272.19 = 3,985,885,248.84 : x
  2. Step 2: Convert to fraction form
    7,200,843,479.20/9,936,948,272.19 = 3,985,885,248.84/x
  3. Step 3: Cross multiply
    7,200,843,479.20x = 9,936,948,272.19 × 3,985,885,248.84
  4. Step 4: Simplify right side
    7,200,843,479.20x = 39,607,535,536,608,247,808
  5. Step 5: Solve for x
    x = 39,607,535,536,608,247,808/7,200,843,479.20
  6. Step 6: Final answer
    x = 5,500,402,230.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.