Home / 28,265,526.60-42,398,289.90-21,091,073.10

Finding the Fourth Proportional to 28,265,526.60, 42,398,289.90 and 21,091,073.10

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Solution

The fourth proportional to 28,265,526.60, 42,398,289.90 and 21,091,073.10 is: 31,636,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265,526.60 : 42,398,289.90 = 21,091,073.10 : x
  2. Step 2: Convert to fraction form
    28,265,526.60/42,398,289.90 = 21,091,073.10/x
  3. Step 3: Cross multiply
    28,265,526.60x = 42,398,289.90 × 21,091,073.10
  4. Step 4: Simplify right side
    28,265,526.60x = 894,225,431,595,891.75
  5. Step 5: Solve for x
    x = 894,225,431,595,891.75/28,265,526.60
  6. Step 6: Final answer
    x = 31,636,609.65

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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.