Home / 878,976,042.40-1,318,674,015.60-265,566,282.40

Finding the Fourth Proportional to 878,976,042.40, 1,318,674,015.60 and 265,566,282.40

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Solution

The fourth proportional to 878,976,042.40, 1,318,674,015.60 and 265,566,282.40 is: 398,412,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,976,042.40 : 1,318,674,015.60 = 265,566,282.40 : x
  2. Step 2: Convert to fraction form
    878,976,042.40/1,318,674,015.60 = 265,566,282.40/x
  3. Step 3: Cross multiply
    878,976,042.40x = 1,318,674,015.60 × 265,566,282.40
  4. Step 4: Simplify right side
    878,976,042.40x = 350,195,356,020,371,584
  5. Step 5: Solve for x
    x = 350,195,356,020,371,584/878,976,042.40
  6. Step 6: Final answer
    x = 398,412,856.70

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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.