Home / 398,074,442.92-597,380,706.33-139,291,905.04

Finding the Fourth Proportional to 398,074,442.92, 597,380,706.33 and 139,291,905.04

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Solution

The fourth proportional to 398,074,442.92, 597,380,706.33 and 139,291,905.04 is: 209,031,999.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,074,442.92 : 597,380,706.33 = 139,291,905.04 : x
  2. Step 2: Convert to fraction form
    398,074,442.92/597,380,706.33 = 139,291,905.04/x
  3. Step 3: Cross multiply
    398,074,442.92x = 597,380,706.33 × 139,291,905.04
  4. Step 4: Simplify right side
    398,074,442.92x = 83,210,296,618,846,480
  5. Step 5: Solve for x
    x = 83,210,296,618,846,480/398,074,442.92
  6. Step 6: Final answer
    x = 209,031,999.16

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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.