Home / 28,774,531.80-43,125,056.10-11,715,931.80

Finding the Fourth Proportional to 28,774,531.80, 43,125,056.10 and 11,715,931.80

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Solution

The fourth proportional to 28,774,531.80, 43,125,056.10 and 11,715,931.80 is: 17,558,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774,531.80 : 43,125,056.10 = 11,715,931.80 : x
  2. Step 2: Convert to fraction form
    28,774,531.80/43,125,056.10 = 11,715,931.80/x
  3. Step 3: Cross multiply
    28,774,531.80x = 43,125,056.10 × 11,715,931.80
  4. Step 4: Simplify right side
    28,774,531.80x = 505,250,216,138,774
  5. Step 5: Solve for x
    x = 505,250,216,138,774/28,774,531.80
  6. Step 6: Final answer
    x = 17,558,937.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.