Home / 18,590,950.76-25,658,555.70-15,488,554.28

Finding the Fourth Proportional to 18,590,950.76, 25,658,555.70 and 15,488,554.28

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Solution

The fourth proportional to 18,590,950.76, 25,658,555.70 and 15,488,554.28 is: 21,376,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590,950.76 : 25,658,555.70 = 15,488,554.28 : x
  2. Step 2: Convert to fraction form
    18,590,950.76/25,658,555.70 = 15,488,554.28/x
  3. Step 3: Cross multiply
    18,590,950.76x = 25,658,555.70 × 15,488,554.28
  4. Step 4: Simplify right side
    18,590,950.76x = 397,413,932,705,853.38
  5. Step 5: Solve for x
    x = 397,413,932,705,853.38/18,590,950.76
  6. Step 6: Final answer
    x = 21,376,740.64

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1.5x scale

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.