Home / 9,109,072.96-12,570,143.12-5,438,587.12

Finding the Fourth Proportional to 9,109,072.96, 12,570,143.12 and 5,438,587.12

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Solution

The fourth proportional to 9,109,072.96, 12,570,143.12 and 5,438,587.12 is: 7,505,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109,072.96 : 12,570,143.12 = 5,438,587.12 : x
  2. Step 2: Convert to fraction form
    9,109,072.96/12,570,143.12 = 5,438,587.12/x
  3. Step 3: Cross multiply
    9,109,072.96x = 12,570,143.12 × 5,438,587.12
  4. Step 4: Simplify right side
    9,109,072.96x = 68,363,818,468,988.61
  5. Step 5: Solve for x
    x = 68,363,818,468,988.61/9,109,072.96
  6. Step 6: Final answer
    x = 7,505,024.80

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1.5x scale

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.