Home / 12,988,277.76-17,925,715.50-7,480,580.64

Finding the Fourth Proportional to 12,988,277.76, 17,925,715.50 and 7,480,580.64

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Solution

The fourth proportional to 12,988,277.76, 17,925,715.50 and 7,480,580.64 is: 10,324,291.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988,277.76 : 17,925,715.50 = 7,480,580.64 : x
  2. Step 2: Convert to fraction form
    12,988,277.76/17,925,715.50 = 7,480,580.64/x
  3. Step 3: Cross multiply
    12,988,277.76x = 17,925,715.50 × 7,480,580.64
  4. Step 4: Simplify right side
    12,988,277.76x = 134,094,760,327,447.91
  5. Step 5: Solve for x
    x = 134,094,760,327,447.91/12,988,277.76
  6. Step 6: Final answer
    x = 10,324,291.09

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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.