Home / 19,118,478.76-28,681,917.18-5,654,257

Finding the Fourth Proportional to 19,118,478.76, 28,681,917.18 and 5,654,257

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Solution

The fourth proportional to 19,118,478.76, 28,681,917.18 and 5,654,257 is: 8,482,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,478.76 : 28,681,917.18 = 5,654,257 : x
  2. Step 2: Convert to fraction form
    19,118,478.76/28,681,917.18 = 5,654,257/x
  3. Step 3: Cross multiply
    19,118,478.76x = 28,681,917.18 × 5,654,257
  4. Step 4: Simplify right side
    19,118,478.76x = 162,174,930,988,435.25
  5. Step 5: Solve for x
    x = 162,174,930,988,435.25/19,118,478.76
  6. Step 6: Final answer
    x = 8,482,627.36

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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.