Home / 247,908,858.20-371,415,389.70-212,077,050.20

Finding the Fourth Proportional to 247,908,858.20, 371,415,389.70 and 212,077,050.20

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Solution

The fourth proportional to 247,908,858.20, 371,415,389.70 and 212,077,050.20 is: 317,732,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908,858.20 : 371,415,389.70 = 212,077,050.20 : x
  2. Step 2: Convert to fraction form
    247,908,858.20/371,415,389.70 = 212,077,050.20/x
  3. Step 3: Cross multiply
    247,908,858.20x = 371,415,389.70 × 212,077,050.20
  4. Step 4: Simplify right side
    247,908,858.20x = 78,768,680,246,459,456
  5. Step 5: Solve for x
    x = 78,768,680,246,459,456/247,908,858.20
  6. Step 6: Final answer
    x = 317,732,415.12

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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.