Home / 885,346,357.38-1,221,336,682.02-527,862,013.72

Finding the Fourth Proportional to 885,346,357.38, 1,221,336,682.02 and 527,862,013.72

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Solution

The fourth proportional to 885,346,357.38, 1,221,336,682.02 and 527,862,013.72 is: 728,186,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346,357.38 : 1,221,336,682.02 = 527,862,013.72 : x
  2. Step 2: Convert to fraction form
    885,346,357.38/1,221,336,682.02 = 527,862,013.72/x
  3. Step 3: Cross multiply
    885,346,357.38x = 1,221,336,682.02 × 527,862,013.72
  4. Step 4: Simplify right side
    885,346,357.38x = 644,697,240,401,180,544
  5. Step 5: Solve for x
    x = 644,697,240,401,180,544/885,346,357.38
  6. Step 6: Final answer
    x = 728,186,471.91

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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.