Home / 508,457,279.40-762,685,919.10-168,055,103.40

Finding the Fourth Proportional to 508,457,279.40, 762,685,919.10 and 168,055,103.40

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Solution

The fourth proportional to 508,457,279.40, 762,685,919.10 and 168,055,103.40 is: 252,082,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,457,279.40 : 762,685,919.10 = 168,055,103.40 : x
  2. Step 2: Convert to fraction form
    508,457,279.40/762,685,919.10 = 168,055,103.40/x
  3. Step 3: Cross multiply
    508,457,279.40x = 762,685,919.10 × 168,055,103.40
  4. Step 4: Simplify right side
    508,457,279.40x = 128,173,260,996,074,544
  5. Step 5: Solve for x
    x = 128,173,260,996,074,544/508,457,279.40
  6. Step 6: Final answer
    x = 252,082,655.10

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Similar ratio
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1.5x scale

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.