Home / 20,028,340.72-27,639,117.52-10,860,981.04

Finding the Fourth Proportional to 20,028,340.72, 27,639,117.52 and 10,860,981.04

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Solution

The fourth proportional to 20,028,340.72, 27,639,117.52 and 10,860,981.04 is: 14,988,157.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028,340.72 : 27,639,117.52 = 10,860,981.04 : x
  2. Step 2: Convert to fraction form
    20,028,340.72/27,639,117.52 = 10,860,981.04/x
  3. Step 3: Cross multiply
    20,028,340.72x = 27,639,117.52 × 10,860,981.04
  4. Step 4: Simplify right side
    20,028,340.72x = 300,187,931,347,051.81
  5. Step 5: Solve for x
    x = 300,187,931,347,051.81/20,028,340.72
  6. Step 6: Final answer
    x = 14,988,157.81

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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.