Home / 1,247,379,984,238.80-1,867,847,566,398.10-860,898,672,019.55

Finding the Fourth Proportional to 1,247,379,984,238.80, 1,867,847,566,398.10 and 860,898,672,019.55

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Solution

The fourth proportional to 1,247,379,984,238.80, 1,867,847,566,398.10 and 860,898,672,019.55 is: 1,289,124,011,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,379,984,238.80 : 1,867,847,566,398.10 = 860,898,672,019.55 : x
  2. Step 2: Convert to fraction form
    1,247,379,984,238.80/1,867,847,566,398.10 = 860,898,672,019.55/x
  3. Step 3: Cross multiply
    1,247,379,984,238.80x = 1,867,847,566,398.10 × 860,898,672,019.55
  4. Step 4: Simplify right side
    1,247,379,984,238.80x = 1,608,027,489,447,072,747,225,088
  5. Step 5: Solve for x
    x = 1,608,027,489,447,072,747,225,088/1,247,379,984,238.80
  6. Step 6: Final answer
    x = 1,289,124,011,740.78

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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.