Home / 10,478,518.12-15,719,775.24-3,657,039.72

Finding the Fourth Proportional to 10,478,518.12, 15,719,775.24 and 3,657,039.72

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Solution

The fourth proportional to 10,478,518.12, 15,719,775.24 and 3,657,039.72 is: 5,486,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478,518.12 : 15,719,775.24 = 3,657,039.72 : x
  2. Step 2: Convert to fraction form
    10,478,518.12/15,719,775.24 = 3,657,039.72/x
  3. Step 3: Cross multiply
    10,478,518.12x = 15,719,775.24 × 3,657,039.72
  4. Step 4: Simplify right side
    10,478,518.12x = 57,487,842,442,152.54
  5. Step 5: Solve for x
    x = 57,487,842,442,152.54/10,478,518.12
  6. Step 6: Final answer
    x = 5,486,256.91

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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.