Home / 28,758,543.40-43,137,815.10-13,641,999.40

Finding the Fourth Proportional to 28,758,543.40, 43,137,815.10 and 13,641,999.40

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Solution

The fourth proportional to 28,758,543.40, 43,137,815.10 and 13,641,999.40 is: 20,462,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758,543.40 : 43,137,815.10 = 13,641,999.40 : x
  2. Step 2: Convert to fraction form
    28,758,543.40/43,137,815.10 = 13,641,999.40/x
  3. Step 3: Cross multiply
    28,758,543.40x = 43,137,815.10 × 13,641,999.40
  4. Step 4: Simplify right side
    28,758,543.40x = 588,486,047,711,511
  5. Step 5: Solve for x
    x = 588,486,047,711,511/28,758,543.40
  6. Step 6: Final answer
    x = 20,462,999.10

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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.