Home / 21,014,117.10-31,521,175.65-7,382,655.45

Finding the Fourth Proportional to 21,014,117.10, 31,521,175.65 and 7,382,655.45

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Solution

The fourth proportional to 21,014,117.10, 31,521,175.65 and 7,382,655.45 is: 11,073,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,117.10 : 31,521,175.65 = 7,382,655.45 : x
  2. Step 2: Convert to fraction form
    21,014,117.10/31,521,175.65 = 7,382,655.45/x
  3. Step 3: Cross multiply
    21,014,117.10x = 31,521,175.65 × 7,382,655.45
  4. Step 4: Simplify right side
    21,014,117.10x = 232,709,979,202,879.78
  5. Step 5: Solve for x
    x = 232,709,979,202,879.78/21,014,117.10
  6. Step 6: Final answer
    x = 11,073,983.18

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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.