Home / 707,647,037.59-976,555,871.42-390,100,314.38

Finding the Fourth Proportional to 707,647,037.59, 976,555,871.42 and 390,100,314.38

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Solution

The fourth proportional to 707,647,037.59, 976,555,871.42 and 390,100,314.38 is: 538,340,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,647,037.59 : 976,555,871.42 = 390,100,314.38 : x
  2. Step 2: Convert to fraction form
    707,647,037.59/976,555,871.42 = 390,100,314.38/x
  3. Step 3: Cross multiply
    707,647,037.59x = 976,555,871.42 × 390,100,314.38
  4. Step 4: Simplify right side
    707,647,037.59x = 380,954,752,443,743,552
  5. Step 5: Solve for x
    x = 380,954,752,443,743,552/707,647,037.59
  6. Step 6: Final answer
    x = 538,340,065.32

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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.