Home / 840,632,119.92-1,260,948,209.04-612,055,802.88

Finding the Fourth Proportional to 840,632,119.92, 1,260,948,209.04 and 612,055,802.88

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Solution

The fourth proportional to 840,632,119.92, 1,260,948,209.04 and 612,055,802.88 is: 918,083,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,632,119.92 : 1,260,948,209.04 = 612,055,802.88 : x
  2. Step 2: Convert to fraction form
    840,632,119.92/1,260,948,209.04 = 612,055,802.88/x
  3. Step 3: Cross multiply
    840,632,119.92x = 1,260,948,209.04 × 612,055,802.88
  4. Step 4: Simplify right side
    840,632,119.92x = 771,770,668,474,075,264
  5. Step 5: Solve for x
    x = 771,770,668,474,075,264/840,632,119.92
  6. Step 6: Final answer
    x = 918,083,725.55

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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.