Home / 20,430,280.60-30,654,448.08-10,712,572.72

Finding the Fourth Proportional to 20,430,280.60, 30,654,448.08 and 10,712,572.72

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Solution

The fourth proportional to 20,430,280.60, 30,654,448.08 and 10,712,572.72 is: 16,073,592.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430,280.60 : 30,654,448.08 = 10,712,572.72 : x
  2. Step 2: Convert to fraction form
    20,430,280.60/30,654,448.08 = 10,712,572.72/x
  3. Step 3: Cross multiply
    20,430,280.60x = 30,654,448.08 × 10,712,572.72
  4. Step 4: Simplify right side
    20,430,280.60x = 328,388,004,248,464.38
  5. Step 5: Solve for x
    x = 328,388,004,248,464.38/20,430,280.60
  6. Step 6: Final answer
    x = 16,073,592.46

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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.