Home / 398,601,384.70-597,902,077.05-343,118,944.30

Finding the Fourth Proportional to 398,601,384.70, 597,902,077.05 and 343,118,944.30

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Solution

The fourth proportional to 398,601,384.70, 597,902,077.05 and 343,118,944.30 is: 514,678,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,601,384.70 : 597,902,077.05 = 343,118,944.30 : x
  2. Step 2: Convert to fraction form
    398,601,384.70/597,902,077.05 = 343,118,944.30/x
  3. Step 3: Cross multiply
    398,601,384.70x = 597,902,077.05 × 343,118,944.30
  4. Step 4: Simplify right side
    398,601,384.70x = 205,151,529,472,173,248
  5. Step 5: Solve for x
    x = 205,151,529,472,173,248/398,601,384.70
  6. Step 6: Final answer
    x = 514,678,416.45

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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.