Home / 382,478,142.30-573,717,213.45-123,719,519.40

Finding the Fourth Proportional to 382,478,142.30, 573,717,213.45 and 123,719,519.40

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Solution

The fourth proportional to 382,478,142.30, 573,717,213.45 and 123,719,519.40 is: 185,579,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,478,142.30 : 573,717,213.45 = 123,719,519.40 : x
  2. Step 2: Convert to fraction form
    382,478,142.30/573,717,213.45 = 123,719,519.40/x
  3. Step 3: Cross multiply
    382,478,142.30x = 573,717,213.45 × 123,719,519.40
  4. Step 4: Simplify right side
    382,478,142.30x = 70,980,017,919,541,224
  5. Step 5: Solve for x
    x = 70,980,017,919,541,224/382,478,142.30
  6. Step 6: Final answer
    x = 185,579,279.10

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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.