Home / 28,011,297.96-38,655,886.50-15,788,154.96

Finding the Fourth Proportional to 28,011,297.96, 38,655,886.50 and 15,788,154.96

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Solution

The fourth proportional to 28,011,297.96, 38,655,886.50 and 15,788,154.96 is: 21,787,820.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,297.96 : 38,655,886.50 = 15,788,154.96 : x
  2. Step 2: Convert to fraction form
    28,011,297.96/38,655,886.50 = 15,788,154.96/x
  3. Step 3: Cross multiply
    28,011,297.96x = 38,655,886.50 × 15,788,154.96
  4. Step 4: Simplify right side
    28,011,297.96x = 610,305,126,178,172.12
  5. Step 5: Solve for x
    x = 610,305,126,178,172.12/28,011,297.96
  6. Step 6: Final answer
    x = 21,787,820.29

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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.