Home / 405,986,870-560,165,855.31-229,774,865.30

Finding the Fourth Proportional to 405,986,870, 560,165,855.31 and 229,774,865.30

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Solution

The fourth proportional to 405,986,870, 560,165,855.31 and 229,774,865.30 is: 317,034,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,986,870 : 560,165,855.31 = 229,774,865.30 : x
  2. Step 2: Convert to fraction form
    405,986,870/560,165,855.31 = 229,774,865.30/x
  3. Step 3: Cross multiply
    405,986,870x = 560,165,855.31 × 229,774,865.30
  4. Step 4: Simplify right side
    405,986,870x = 128,712,033,949,514,528
  5. Step 5: Solve for x
    x = 128,712,033,949,514,528/405,986,870
  6. Step 6: Final answer
    x = 317,034,967.04

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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.