Home / 14,620,012-20,172,817.20-9,462,657.76

Finding the Fourth Proportional to 14,620,012, 20,172,817.20 and 9,462,657.76

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Solution

The fourth proportional to 14,620,012, 20,172,817.20 and 9,462,657.76 is: 13,056,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620,012 : 20,172,817.20 = 9,462,657.76 : x
  2. Step 2: Convert to fraction form
    14,620,012/20,172,817.20 = 9,462,657.76/x
  3. Step 3: Cross multiply
    14,620,012x = 20,172,817.20 × 9,462,657.76
  4. Step 4: Simplify right side
    14,620,012x = 190,888,465,218,641.47
  5. Step 5: Solve for x
    x = 190,888,465,218,641.47/14,620,012
  6. Step 6: Final answer
    x = 13,056,655.85

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1.5x scale

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.