Home / 646,260,425.70-969,390,638.55-179,920,948.20

Finding the Fourth Proportional to 646,260,425.70, 969,390,638.55 and 179,920,948.20

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Solution

The fourth proportional to 646,260,425.70, 969,390,638.55 and 179,920,948.20 is: 269,881,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,260,425.70 : 969,390,638.55 = 179,920,948.20 : x
  2. Step 2: Convert to fraction form
    646,260,425.70/969,390,638.55 = 179,920,948.20/x
  3. Step 3: Cross multiply
    646,260,425.70x = 969,390,638.55 × 179,920,948.20
  4. Step 4: Simplify right side
    646,260,425.70x = 174,413,682,864,119,456
  5. Step 5: Solve for x
    x = 174,413,682,864,119,456/646,260,425.70
  6. Step 6: Final answer
    x = 269,881,422.30

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Double scale
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Similar ratio
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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.