Home / 247,908,859.20-371,415,391.20-212,077,051.20

Finding the Fourth Proportional to 247,908,859.20, 371,415,391.20 and 212,077,051.20

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Solution

The fourth proportional to 247,908,859.20, 371,415,391.20 and 212,077,051.20 is: 317,732,416.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908,859.20 : 371,415,391.20 = 212,077,051.20 : x
  2. Step 2: Convert to fraction form
    247,908,859.20/371,415,391.20 = 212,077,051.20/x
  3. Step 3: Cross multiply
    247,908,859.20x = 371,415,391.20 × 212,077,051.20
  4. Step 4: Simplify right side
    247,908,859.20x = 78,768,680,935,990,416
  5. Step 5: Solve for x
    x = 78,768,680,935,990,416/247,908,859.20
  6. Step 6: Final answer
    x = 317,732,416.62

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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.