Home / 20,802,605.80-28,708,442.13-11,510,024.70

Finding the Fourth Proportional to 20,802,605.80, 28,708,442.13 and 11,510,024.70

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Solution

The fourth proportional to 20,802,605.80, 28,708,442.13 and 11,510,024.70 is: 15,884,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,605.80 : 28,708,442.13 = 11,510,024.70 : x
  2. Step 2: Convert to fraction form
    20,802,605.80/28,708,442.13 = 11,510,024.70/x
  3. Step 3: Cross multiply
    20,802,605.80x = 28,708,442.13 × 11,510,024.70
  4. Step 4: Simplify right side
    20,802,605.80x = 330,434,878,014,820.56
  5. Step 5: Solve for x
    x = 330,434,878,014,820.56/20,802,605.80
  6. Step 6: Final answer
    x = 15,884,302.25

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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.