Home / 20,510,440.74-28,301,263.59-11,806,931.70

Finding the Fourth Proportional to 20,510,440.74, 28,301,263.59 and 11,806,931.70

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Solution

The fourth proportional to 20,510,440.74, 28,301,263.59 and 11,806,931.70 is: 16,291,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510,440.74 : 28,301,263.59 = 11,806,931.70 : x
  2. Step 2: Convert to fraction form
    20,510,440.74/28,301,263.59 = 11,806,931.70/x
  3. Step 3: Cross multiply
    20,510,440.74x = 28,301,263.59 × 11,806,931.70
  4. Step 4: Simplify right side
    20,510,440.74x = 334,151,086,230,826.75
  5. Step 5: Solve for x
    x = 334,151,086,230,826.75/20,510,440.74
  6. Step 6: Final answer
    x = 16,291,755.52

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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.