Home / 15,174,529,058.42-20,941,098,021.19-8,307,811,129.86

Finding the Fourth Proportional to 15,174,529,058.42, 20,941,098,021.19 and 8,307,811,129.86

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Solution

The fourth proportional to 15,174,529,058.42, 20,941,098,021.19 and 8,307,811,129.86 is: 11,464,915,091.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174,529,058.42 : 20,941,098,021.19 = 8,307,811,129.86 : x
  2. Step 2: Convert to fraction form
    15,174,529,058.42/20,941,098,021.19 = 8,307,811,129.86/x
  3. Step 3: Cross multiply
    15,174,529,058.42x = 20,941,098,021.19 × 8,307,811,129.86
  4. Step 4: Simplify right side
    15,174,529,058.42x = 173,974,687,211,931,500,544
  5. Step 5: Solve for x
    x = 173,974,687,211,931,500,544/15,174,529,058.42
  6. Step 6: Final answer
    x = 11,464,915,091.74

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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.