Home / 13,416,170.76-18,513,911.16-7,455,557.16

Finding the Fourth Proportional to 13,416,170.76, 18,513,911.16 and 7,455,557.16

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Solution

The fourth proportional to 13,416,170.76, 18,513,911.16 and 7,455,557.16 is: 10,288,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416,170.76 : 18,513,911.16 = 7,455,557.16 : x
  2. Step 2: Convert to fraction form
    13,416,170.76/18,513,911.16 = 7,455,557.16/x
  3. Step 3: Cross multiply
    13,416,170.76x = 18,513,911.16 × 7,455,557.16
  4. Step 4: Simplify right side
    13,416,170.76x = 138,031,522,908,541.91
  5. Step 5: Solve for x
    x = 138,031,522,908,541.91/13,416,170.76
  6. Step 6: Final answer
    x = 10,288,444.10

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Double scale
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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.