Home / 20,416,383.18-28,174,254.03-11,124,029.61

Finding the Fourth Proportional to 20,416,383.18, 28,174,254.03 and 11,124,029.61

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Solution

The fourth proportional to 20,416,383.18, 28,174,254.03 and 11,124,029.61 is: 15,350,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416,383.18 : 28,174,254.03 = 11,124,029.61 : x
  2. Step 2: Convert to fraction form
    20,416,383.18/28,174,254.03 = 11,124,029.61/x
  3. Step 3: Cross multiply
    20,416,383.18x = 28,174,254.03 × 11,124,029.61
  4. Step 4: Simplify right side
    20,416,383.18x = 313,411,236,069,381.81
  5. Step 5: Solve for x
    x = 313,411,236,069,381.81/20,416,383.18
  6. Step 6: Final answer
    x = 15,350,967.57

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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.