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Finding the Fourth Proportional to 805,769,609.60, 1,208,654,414.40 and 744,547,606.40

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Solution

The fourth proportional to 805,769,609.60, 1,208,654,414.40 and 744,547,606.40 is: 1,116,821,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,769,609.60 : 1,208,654,414.40 = 744,547,606.40 : x
  2. Step 2: Convert to fraction form
    805,769,609.60/1,208,654,414.40 = 744,547,606.40/x
  3. Step 3: Cross multiply
    805,769,609.60x = 1,208,654,414.40 × 744,547,606.40
  4. Step 4: Simplify right side
    805,769,609.60x = 899,900,751,206,313,728
  5. Step 5: Solve for x
    x = 899,900,751,206,313,728/805,769,609.60
  6. Step 6: Final answer
    x = 1,116,821,409.60

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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.