Home / 56,657,680.80-84,986,521.20-39,438,992.40

Finding the Fourth Proportional to 56,657,680.80, 84,986,521.20 and 39,438,992.40

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Solution

The fourth proportional to 56,657,680.80, 84,986,521.20 and 39,438,992.40 is: 59,158,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,657,680.80 : 84,986,521.20 = 39,438,992.40 : x
  2. Step 2: Convert to fraction form
    56,657,680.80/84,986,521.20 = 39,438,992.40/x
  3. Step 3: Cross multiply
    56,657,680.80x = 84,986,521.20 × 39,438,992.40
  4. Step 4: Simplify right side
    56,657,680.80x = 3,351,782,763,709,239
  5. Step 5: Solve for x
    x = 3,351,782,763,709,239/56,657,680.80
  6. Step 6: Final answer
    x = 59,158,488.60

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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.