Home / 28,011,235.94-38,655,800.85-15,788,092.94

Finding the Fourth Proportional to 28,011,235.94, 38,655,800.85 and 15,788,092.94

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Solution

The fourth proportional to 28,011,235.94, 38,655,800.85 and 15,788,092.94 is: 21,787,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,235.94 : 38,655,800.85 = 15,788,092.94 : x
  2. Step 2: Convert to fraction form
    28,011,235.94/38,655,800.85 = 15,788,092.94/x
  3. Step 3: Cross multiply
    28,011,235.94x = 38,655,800.85 × 15,788,092.94
  4. Step 4: Simplify right side
    28,011,235.94x = 610,301,376,489,931
  5. Step 5: Solve for x
    x = 610,301,376,489,931/28,011,235.94
  6. Step 6: Final answer
    x = 21,787,734.67

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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.