Home / 862,285,715.10-1,293,428,572.65-853,215,788.70

Finding the Fourth Proportional to 862,285,715.10, 1,293,428,572.65 and 853,215,788.70

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Solution

The fourth proportional to 862,285,715.10, 1,293,428,572.65 and 853,215,788.70 is: 1,279,823,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,285,715.10 : 1,293,428,572.65 = 853,215,788.70 : x
  2. Step 2: Convert to fraction form
    862,285,715.10/1,293,428,572.65 = 853,215,788.70/x
  3. Step 3: Cross multiply
    862,285,715.10x = 1,293,428,572.65 × 853,215,788.70
  4. Step 4: Simplify right side
    862,285,715.10x = 1,103,573,679,740,685,184
  5. Step 5: Solve for x
    x = 1,103,573,679,740,685,184/862,285,715.10
  6. Step 6: Final answer
    x = 1,279,823,683.05

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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.