Home / 208,456,856.76-312,481,948.74-99,252,685.92

Finding the Fourth Proportional to 208,456,856.76, 312,481,948.74 and 99,252,685.92

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Solution

The fourth proportional to 208,456,856.76, 312,481,948.74 and 99,252,685.92 is: 148,782,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,456,856.76 : 312,481,948.74 = 99,252,685.92 : x
  2. Step 2: Convert to fraction form
    208,456,856.76/312,481,948.74 = 99,252,685.92/x
  3. Step 3: Cross multiply
    208,456,856.76x = 312,481,948.74 × 99,252,685.92
  4. Step 4: Simplify right side
    208,456,856.76x = 31,014,672,713,960,760
  5. Step 5: Solve for x
    x = 31,014,672,713,960,760/208,456,856.76
  6. Step 6: Final answer
    x = 148,782,214.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.