Home / 763,392,029.80-1,145,088,044.70-711,995,780.20

Finding the Fourth Proportional to 763,392,029.80, 1,145,088,044.70 and 711,995,780.20

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Solution

The fourth proportional to 763,392,029.80, 1,145,088,044.70 and 711,995,780.20 is: 1,067,993,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,392,029.80 : 1,145,088,044.70 = 711,995,780.20 : x
  2. Step 2: Convert to fraction form
    763,392,029.80/1,145,088,044.70 = 711,995,780.20/x
  3. Step 3: Cross multiply
    763,392,029.80x = 1,145,088,044.70 × 711,995,780.20
  4. Step 4: Simplify right side
    763,392,029.80x = 815,297,855,783,869,056
  5. Step 5: Solve for x
    x = 815,297,855,783,869,056/763,392,029.80
  6. Step 6: Final answer
    x = 1,067,993,670.30

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1.5x scale

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.