Home / 1,247,380,784,510.80-1,867,848,767,422.70-860,899,473,989.20

Finding the Fourth Proportional to 1,247,380,784,510.80, 1,867,848,767,422.70 and 860,899,473,989.20

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Solution

The fourth proportional to 1,247,380,784,510.80, 1,867,848,767,422.70 and 860,899,473,989.20 is: 1,289,125,214,475.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,380,784,510.80 : 1,867,848,767,422.70 = 860,899,473,989.20 : x
  2. Step 2: Convert to fraction form
    1,247,380,784,510.80/1,867,848,767,422.70 = 860,899,473,989.20/x
  3. Step 3: Cross multiply
    1,247,380,784,510.80x = 1,867,848,767,422.70 × 860,899,473,989.20
  4. Step 4: Simplify right side
    1,247,380,784,510.80x = 1,608,030,021,365,577,969,303,552
  5. Step 5: Solve for x
    x = 1,608,030,021,365,577,969,303,552/1,247,380,784,510.80
  6. Step 6: Final answer
    x = 1,289,125,214,475.88

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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.