Home / 28,011,298.96-38,655,887.88-15,788,155.96

Finding the Fourth Proportional to 28,011,298.96, 38,655,887.88 and 15,788,155.96

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Solution

The fourth proportional to 28,011,298.96, 38,655,887.88 and 15,788,155.96 is: 21,787,821.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,298.96 : 38,655,887.88 = 15,788,155.96 : x
  2. Step 2: Convert to fraction form
    28,011,298.96/38,655,887.88 = 15,788,155.96/x
  3. Step 3: Cross multiply
    28,011,298.96x = 38,655,887.88 × 15,788,155.96
  4. Step 4: Simplify right side
    28,011,298.96x = 610,305,186,621,713.88
  5. Step 5: Solve for x
    x = 610,305,186,621,713.88/28,011,298.96
  6. Step 6: Final answer
    x = 21,787,821.67

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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.