Home / 85,078,443,384.18-127,503,591,138.99-66,214,509,750.90

Finding the Fourth Proportional to 85,078,443,384.18, 127,503,591,138.99 and 66,214,509,750.90

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Solution

The fourth proportional to 85,078,443,384.18, 127,503,591,138.99 and 66,214,509,750.90 is: 99,232,983,619.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078,443,384.18 : 127,503,591,138.99 = 66,214,509,750.90 : x
  2. Step 2: Convert to fraction form
    85,078,443,384.18/127,503,591,138.99 = 66,214,509,750.90/x
  3. Step 3: Cross multiply
    85,078,443,384.18x = 127,503,591,138.99 × 66,214,509,750.90
  4. Step 4: Simplify right side
    85,078,443,384.18x = 8,442,587,778,747,420,639,232
  5. Step 5: Solve for x
    x = 8,442,587,778,747,420,639,232/85,078,443,384.18
  6. Step 6: Final answer
    x = 99,232,983,619.88

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1.5x scale

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.