Home / 558,645,734.94-770,955,008.31-311,127,049.50

Finding the Fourth Proportional to 558,645,734.94, 770,955,008.31 and 311,127,049.50

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Solution

The fourth proportional to 558,645,734.94, 770,955,008.31 and 311,127,049.50 is: 429,368,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,645,734.94 : 770,955,008.31 = 311,127,049.50 : x
  2. Step 2: Convert to fraction form
    558,645,734.94/770,955,008.31 = 311,127,049.50/x
  3. Step 3: Cross multiply
    558,645,734.94x = 770,955,008.31 × 311,127,049.50
  4. Step 4: Simplify right side
    558,645,734.94x = 239,864,957,032,738,272
  5. Step 5: Solve for x
    x = 239,864,957,032,738,272/558,645,734.94
  6. Step 6: Final answer
    x = 429,368,635.67

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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.