Home / 857,304,019.40-1,285,956,029.10-851,257,401.80

Finding the Fourth Proportional to 857,304,019.40, 1,285,956,029.10 and 851,257,401.80

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Solution

The fourth proportional to 857,304,019.40, 1,285,956,029.10 and 851,257,401.80 is: 1,276,886,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,304,019.40 : 1,285,956,029.10 = 851,257,401.80 : x
  2. Step 2: Convert to fraction form
    857,304,019.40/1,285,956,029.10 = 851,257,401.80/x
  3. Step 3: Cross multiply
    857,304,019.40x = 1,285,956,029.10 × 851,257,401.80
  4. Step 4: Simplify right side
    857,304,019.40x = 1,094,679,588,160,711,040
  5. Step 5: Solve for x
    x = 1,094,679,588,160,711,040/857,304,019.40
  6. Step 6: Final answer
    x = 1,276,886,102.70

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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.