Home / 320,223,338.72-480,373,877.28-90,192,423.68

Finding the Fourth Proportional to 320,223,338.72, 480,373,877.28 and 90,192,423.68

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Solution

The fourth proportional to 320,223,338.72, 480,373,877.28 and 90,192,423.68 is: 135,299,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,223,338.72 : 480,373,877.28 = 90,192,423.68 : x
  2. Step 2: Convert to fraction form
    320,223,338.72/480,373,877.28 = 90,192,423.68/x
  3. Step 3: Cross multiply
    320,223,338.72x = 480,373,877.28 × 90,192,423.68
  4. Step 4: Simplify right side
    320,223,338.72x = 43,326,084,264,442,088
  5. Step 5: Solve for x
    x = 43,326,084,264,442,088/320,223,338.72
  6. Step 6: Final answer
    x = 135,299,583.21

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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.