Home / 15,340,342.92-21,152,507.64-12,540,728.32

Finding the Fourth Proportional to 15,340,342.92, 21,152,507.64 and 12,540,728.32

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Solution

The fourth proportional to 15,340,342.92, 21,152,507.64 and 12,540,728.32 is: 17,292,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340,342.92 : 21,152,507.64 = 12,540,728.32 : x
  2. Step 2: Convert to fraction form
    15,340,342.92/21,152,507.64 = 12,540,728.32/x
  3. Step 3: Cross multiply
    15,340,342.92x = 21,152,507.64 × 12,540,728.32
  4. Step 4: Simplify right side
    15,340,342.92x = 265,267,851,599,964.38
  5. Step 5: Solve for x
    x = 265,267,851,599,964.38/15,340,342.92
  6. Step 6: Final answer
    x = 17,292,172.21

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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.