Home / 388,524,060.52-536,193,778.02-221,267,401.96

Finding the Fourth Proportional to 388,524,060.52, 536,193,778.02 and 221,267,401.96

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Solution

The fourth proportional to 388,524,060.52, 536,193,778.02 and 221,267,401.96 is: 305,366,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,524,060.52 : 536,193,778.02 = 221,267,401.96 : x
  2. Step 2: Convert to fraction form
    388,524,060.52/536,193,778.02 = 221,267,401.96/x
  3. Step 3: Cross multiply
    388,524,060.52x = 536,193,778.02 × 221,267,401.96
  4. Step 4: Simplify right side
    388,524,060.52x = 118,642,204,209,602,352
  5. Step 5: Solve for x
    x = 118,642,204,209,602,352/388,524,060.52
  6. Step 6: Final answer
    x = 305,366,427.12

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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.