Home / 15,138,962.40-20,888,973.72-8,612,210.64

Finding the Fourth Proportional to 15,138,962.40, 20,888,973.72 and 8,612,210.64

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Solution

The fourth proportional to 15,138,962.40, 20,888,973.72 and 8,612,210.64 is: 11,883,261.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138,962.40 : 20,888,973.72 = 8,612,210.64 : x
  2. Step 2: Convert to fraction form
    15,138,962.40/20,888,973.72 = 8,612,210.64/x
  3. Step 3: Cross multiply
    15,138,962.40x = 20,888,973.72 × 8,612,210.64
  4. Step 4: Simplify right side
    15,138,962.40x = 179,900,241,730,064.38
  5. Step 5: Solve for x
    x = 179,900,241,730,064.38/15,138,962.40
  6. Step 6: Final answer
    x = 11,883,261.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.