Home / 1,119,643,223.80-1,678,233,117.30-392,257,521.40

Finding the Fourth Proportional to 1,119,643,223.80, 1,678,233,117.30 and 392,257,521.40

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Solution

The fourth proportional to 1,119,643,223.80, 1,678,233,117.30 and 392,257,521.40 is: 587,954,759.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,643,223.80 : 1,678,233,117.30 = 392,257,521.40 : x
  2. Step 2: Convert to fraction form
    1,119,643,223.80/1,678,233,117.30 = 392,257,521.40/x
  3. Step 3: Cross multiply
    1,119,643,223.80x = 1,678,233,117.30 × 392,257,521.40
  4. Step 4: Simplify right side
    1,119,643,223.80x = 658,299,562,923,493,376
  5. Step 5: Solve for x
    x = 658,299,562,923,493,376/1,119,643,223.80
  6. Step 6: Final answer
    x = 587,954,759.99

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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.