Home / 28,265,534.10-42,398,301.15-21,091,080.60

Finding the Fourth Proportional to 28,265,534.10, 42,398,301.15 and 21,091,080.60

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Solution

The fourth proportional to 28,265,534.10, 42,398,301.15 and 21,091,080.60 is: 31,636,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265,534.10 : 42,398,301.15 = 21,091,080.60 : x
  2. Step 2: Convert to fraction form
    28,265,534.10/42,398,301.15 = 21,091,080.60/x
  3. Step 3: Cross multiply
    28,265,534.10x = 42,398,301.15 × 21,091,080.60
  4. Step 4: Simplify right side
    28,265,534.10x = 894,225,986,857,722.75
  5. Step 5: Solve for x
    x = 894,225,986,857,722.75/28,265,534.10
  6. Step 6: Final answer
    x = 31,636,620.90

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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.