Home / 1,119,745,394.20-1,679,618,091.30-712,606,475.80

Finding the Fourth Proportional to 1,119,745,394.20, 1,679,618,091.30 and 712,606,475.80

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Solution

The fourth proportional to 1,119,745,394.20, 1,679,618,091.30 and 712,606,475.80 is: 1,068,909,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745,394.20 : 1,679,618,091.30 = 712,606,475.80 : x
  2. Step 2: Convert to fraction form
    1,119,745,394.20/1,679,618,091.30 = 712,606,475.80/x
  3. Step 3: Cross multiply
    1,119,745,394.20x = 1,679,618,091.30 × 712,606,475.80
  4. Step 4: Simplify right side
    1,119,745,394.20x = 1,196,906,728,731,215,616
  5. Step 5: Solve for x
    x = 1,196,906,728,731,215,616/1,119,745,394.20
  6. Step 6: Final answer
    x = 1,068,909,713.70

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Double scale
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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.