Home / 55,423,216.88-76,486,705.08-30,642,945.20

Finding the Fourth Proportional to 55,423,216.88, 76,486,705.08 and 30,642,945.20

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Solution

The fourth proportional to 55,423,216.88, 76,486,705.08 and 30,642,945.20 is: 42,288,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,423,216.88 : 76,486,705.08 = 30,642,945.20 : x
  2. Step 2: Convert to fraction form
    55,423,216.88/76,486,705.08 = 30,642,945.20/x
  3. Step 3: Cross multiply
    55,423,216.88x = 76,486,705.08 × 30,642,945.20
  4. Step 4: Simplify right side
    55,423,216.88x = 2,343,777,912,295,001.50
  5. Step 5: Solve for x
    x = 2,343,777,912,295,001.50/55,423,216.88
  6. Step 6: Final answer
    x = 42,288,738.26

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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.