Home / 847,983,412.23-1,271,975,561.89-265,763,003.24

Finding the Fourth Proportional to 847,983,412.23, 1,271,975,561.89 and 265,763,003.24

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Solution

The fourth proportional to 847,983,412.23, 1,271,975,561.89 and 265,763,003.24 is: 398,644,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,983,412.23 : 1,271,975,561.89 = 265,763,003.24 : x
  2. Step 2: Convert to fraction form
    847,983,412.23/1,271,975,561.89 = 265,763,003.24/x
  3. Step 3: Cross multiply
    847,983,412.23x = 1,271,975,561.89 × 265,763,003.24
  4. Step 4: Simplify right side
    847,983,412.23x = 338,044,045,375,772,928
  5. Step 5: Solve for x
    x = 338,044,045,375,772,928/847,983,412.23
  6. Step 6: Final answer
    x = 398,644,643.87

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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.