Home / 1,105,191,322.11-1,658,025,343.89-318,239,678.52

Finding the Fourth Proportional to 1,105,191,322.11, 1,658,025,343.89 and 318,239,678.52

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Solution

The fourth proportional to 1,105,191,322.11, 1,658,025,343.89 and 318,239,678.52 is: 477,428,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,191,322.11 : 1,658,025,343.89 = 318,239,678.52 : x
  2. Step 2: Convert to fraction form
    1,105,191,322.11/1,658,025,343.89 = 318,239,678.52/x
  3. Step 3: Cross multiply
    1,105,191,322.11x = 1,658,025,343.89 × 318,239,678.52
  4. Step 4: Simplify right side
    1,105,191,322.11x = 527,649,452,417,566,080
  5. Step 5: Solve for x
    x = 527,649,452,417,566,080/1,105,191,322.11
  6. Step 6: Final answer
    x = 477,428,153.72

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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.