Home / 20,110,854.20-30,166,281.30-7,331,775.80

Finding the Fourth Proportional to 20,110,854.20, 30,166,281.30 and 7,331,775.80

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Solution

The fourth proportional to 20,110,854.20, 30,166,281.30 and 7,331,775.80 is: 10,997,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110,854.20 : 30,166,281.30 = 7,331,775.80 : x
  2. Step 2: Convert to fraction form
    20,110,854.20/30,166,281.30 = 7,331,775.80/x
  3. Step 3: Cross multiply
    20,110,854.20x = 30,166,281.30 × 7,331,775.80
  4. Step 4: Simplify right side
    20,110,854.20x = 221,172,411,211,332.53
  5. Step 5: Solve for x
    x = 221,172,411,211,332.53/20,110,854.20
  6. Step 6: Final answer
    x = 10,997,663.70

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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.