Home / 18,957,214.52-28,436,631.02-7,445,176.68

Finding the Fourth Proportional to 18,957,214.52, 28,436,631.02 and 7,445,176.68

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Solution

The fourth proportional to 18,957,214.52, 28,436,631.02 and 7,445,176.68 is: 11,168,082.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957,214.52 : 28,436,631.02 = 7,445,176.68 : x
  2. Step 2: Convert to fraction form
    18,957,214.52/28,436,631.02 = 7,445,176.68/x
  3. Step 3: Cross multiply
    18,957,214.52x = 28,436,631.02 × 7,445,176.68
  4. Step 4: Simplify right side
    18,957,214.52x = 211,715,742,127,868.59
  5. Step 5: Solve for x
    x = 211,715,742,127,868.59/18,957,214.52
  6. Step 6: Final answer
    x = 11,168,082.84

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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.