Home / 28,347,506.40-42,529,132.80-12,181,202.40

Finding the Fourth Proportional to 28,347,506.40, 42,529,132.80 and 12,181,202.40

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Solution

The fourth proportional to 28,347,506.40, 42,529,132.80 and 12,181,202.40 is: 18,275,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,506.40 : 42,529,132.80 = 12,181,202.40 : x
  2. Step 2: Convert to fraction form
    28,347,506.40/42,529,132.80 = 12,181,202.40/x
  3. Step 3: Cross multiply
    28,347,506.40x = 42,529,132.80 × 12,181,202.40
  4. Step 4: Simplify right side
    28,347,506.40x = 518,055,974,533,278.69
  5. Step 5: Solve for x
    x = 518,055,974,533,278.69/28,347,506.40
  6. Step 6: Final answer
    x = 18,275,186.79

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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.