Home / 340,992,028.20-511,488,042.30-312,774,479.40

Finding the Fourth Proportional to 340,992,028.20, 511,488,042.30 and 312,774,479.40

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Solution

The fourth proportional to 340,992,028.20, 511,488,042.30 and 312,774,479.40 is: 469,161,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,992,028.20 : 511,488,042.30 = 312,774,479.40 : x
  2. Step 2: Convert to fraction form
    340,992,028.20/511,488,042.30 = 312,774,479.40/x
  3. Step 3: Cross multiply
    340,992,028.20x = 511,488,042.30 × 312,774,479.40
  4. Step 4: Simplify right side
    340,992,028.20x = 159,980,406,149,707,680
  5. Step 5: Solve for x
    x = 159,980,406,149,707,680/340,992,028.20
  6. Step 6: Final answer
    x = 469,161,719.10

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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.