Home / 15,512,188.50-21,406,967.75-8,636,818.19

Finding the Fourth Proportional to 15,512,188.50, 21,406,967.75 and 8,636,818.19

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Solution

The fourth proportional to 15,512,188.50, 21,406,967.75 and 8,636,818.19 is: 11,918,891.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512,188.50 : 21,406,967.75 = 8,636,818.19 : x
  2. Step 2: Convert to fraction form
    15,512,188.50/21,406,967.75 = 8,636,818.19/x
  3. Step 3: Cross multiply
    15,512,188.50x = 21,406,967.75 × 8,636,818.19
  4. Step 4: Simplify right side
    15,512,188.50x = 184,888,088,370,500.59
  5. Step 5: Solve for x
    x = 184,888,088,370,500.59/15,512,188.50
  6. Step 6: Final answer
    x = 11,918,891.29

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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.