Home / 15,686,436.54-21,647,807.48-8,717,407.84

Finding the Fourth Proportional to 15,686,436.54, 21,647,807.48 and 8,717,407.84

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Solution

The fourth proportional to 15,686,436.54, 21,647,807.48 and 8,717,407.84 is: 12,030,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,436.54 : 21,647,807.48 = 8,717,407.84 : x
  2. Step 2: Convert to fraction form
    15,686,436.54/21,647,807.48 = 8,717,407.84/x
  3. Step 3: Cross multiply
    15,686,436.54x = 21,647,807.48 × 8,717,407.84
  4. Step 4: Simplify right side
    15,686,436.54x = 188,712,766,572,047.03
  5. Step 5: Solve for x
    x = 188,712,766,572,047.03/15,686,436.54
  6. Step 6: Final answer
    x = 12,030,314.60

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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.