Home / 1,119,168,040.80-1,678,752,061.20-392,062,274.40

Finding the Fourth Proportional to 1,119,168,040.80, 1,678,752,061.20 and 392,062,274.40

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Solution

The fourth proportional to 1,119,168,040.80, 1,678,752,061.20 and 392,062,274.40 is: 588,093,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,168,040.80 : 1,678,752,061.20 = 392,062,274.40 : x
  2. Step 2: Convert to fraction form
    1,119,168,040.80/1,678,752,061.20 = 392,062,274.40/x
  3. Step 3: Cross multiply
    1,119,168,040.80x = 1,678,752,061.20 × 392,062,274.40
  4. Step 4: Simplify right side
    1,119,168,040.80x = 658,175,351,267,760,000
  5. Step 5: Solve for x
    x = 658,175,351,267,760,000/1,119,168,040.80
  6. Step 6: Final answer
    x = 588,093,411.60

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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.