Home / 18,860,471-28,290,904.06-15,097,871.96

Finding the Fourth Proportional to 18,860,471, 28,290,904.06 and 15,097,871.96

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Solution

The fourth proportional to 18,860,471, 28,290,904.06 and 15,097,871.96 is: 22,646,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860,471 : 28,290,904.06 = 15,097,871.96 : x
  2. Step 2: Convert to fraction form
    18,860,471/28,290,904.06 = 15,097,871.96/x
  3. Step 3: Cross multiply
    18,860,471x = 28,290,904.06 × 15,097,871.96
  4. Step 4: Simplify right side
    18,860,471x = 427,132,447,130,524.19
  5. Step 5: Solve for x
    x = 427,132,447,130,524.19/18,860,471
  6. Step 6: Final answer
    x = 22,646,966.09

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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.