Home / 82,378,021.16-113,674,154.90-48,881,727.18

Finding the Fourth Proportional to 82,378,021.16, 113,674,154.90 and 48,881,727.18

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Solution

The fourth proportional to 82,378,021.16, 113,674,154.90 and 48,881,727.18 is: 67,452,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,378,021.16 : 113,674,154.90 = 48,881,727.18 : x
  2. Step 2: Convert to fraction form
    82,378,021.16/113,674,154.90 = 48,881,727.18/x
  3. Step 3: Cross multiply
    82,378,021.16x = 113,674,154.90 × 48,881,727.18
  4. Step 4: Simplify right side
    82,378,021.16x = 5,556,589,026,994,451
  5. Step 5: Solve for x
    x = 5,556,589,026,994,451/82,378,021.16
  6. Step 6: Final answer
    x = 67,452,324.65

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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.