Home / 710,107,428.35-979,863,369.28-392,524,771.21

Finding the Fourth Proportional to 710,107,428.35, 979,863,369.28 and 392,524,771.21

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Solution

The fourth proportional to 710,107,428.35, 979,863,369.28 and 392,524,771.21 is: 541,637,264.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,107,428.35 : 979,863,369.28 = 392,524,771.21 : x
  2. Step 2: Convert to fraction form
    710,107,428.35/979,863,369.28 = 392,524,771.21/x
  3. Step 3: Cross multiply
    710,107,428.35x = 979,863,369.28 × 392,524,771.21
  4. Step 4: Simplify right side
    710,107,428.35x = 384,620,644,840,260,736
  5. Step 5: Solve for x
    x = 384,620,644,840,260,736/710,107,428.35
  6. Step 6: Final answer
    x = 541,637,264.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.