Home / 28,342,106.80-39,091,960.30-18,918,146.36

Finding the Fourth Proportional to 28,342,106.80, 39,091,960.30 and 18,918,146.36

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Solution

The fourth proportional to 28,342,106.80, 39,091,960.30 and 18,918,146.36 is: 26,093,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,106.80 : 39,091,960.30 = 18,918,146.36 : x
  2. Step 2: Convert to fraction form
    28,342,106.80/39,091,960.30 = 18,918,146.36/x
  3. Step 3: Cross multiply
    28,342,106.80x = 39,091,960.30 × 18,918,146.36
  4. Step 4: Simplify right side
    28,342,106.80x = 739,547,426,306,502
  5. Step 5: Solve for x
    x = 739,547,426,306,502/28,342,106.80
  6. Step 6: Final answer
    x = 26,093,593.94

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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.