Home / 31,578,007.10-47,367,010.65-7,643,479.10

Finding the Fourth Proportional to 31,578,007.10, 47,367,010.65 and 7,643,479.10

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Solution

The fourth proportional to 31,578,007.10, 47,367,010.65 and 7,643,479.10 is: 11,465,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578,007.10 : 47,367,010.65 = 7,643,479.10 : x
  2. Step 2: Convert to fraction form
    31,578,007.10/47,367,010.65 = 7,643,479.10/x
  3. Step 3: Cross multiply
    31,578,007.10x = 47,367,010.65 × 7,643,479.10
  4. Step 4: Simplify right side
    31,578,007.10x = 362,048,755,932,752.38
  5. Step 5: Solve for x
    x = 362,048,755,932,752.38/31,578,007.10
  6. Step 6: Final answer
    x = 11,465,218.65

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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.