Home / 18,755,263.20-28,117,148.40-9,779,815.20

Finding the Fourth Proportional to 18,755,263.20, 28,117,148.40 and 9,779,815.20

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Solution

The fourth proportional to 18,755,263.20, 28,117,148.40 and 9,779,815.20 is: 14,661,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755,263.20 : 28,117,148.40 = 9,779,815.20 : x
  2. Step 2: Convert to fraction form
    18,755,263.20/28,117,148.40 = 9,779,815.20/x
  3. Step 3: Cross multiply
    18,755,263.20x = 28,117,148.40 × 9,779,815.20
  4. Step 4: Simplify right side
    18,755,263.20x = 274,980,515,302,975.66
  5. Step 5: Solve for x
    x = 274,980,515,302,975.66/18,755,263.20
  6. Step 6: Final answer
    x = 14,661,511.94

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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.