Home / 156,426,973.32-215,867,825.40-85,860,493.67

Finding the Fourth Proportional to 156,426,973.32, 215,867,825.40 and 85,860,493.67

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Solution

The fourth proportional to 156,426,973.32, 215,867,825.40 and 85,860,493.67 is: 118,486,714.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,426,973.32 : 215,867,825.40 = 85,860,493.67 : x
  2. Step 2: Convert to fraction form
    156,426,973.32/215,867,825.40 = 85,860,493.67/x
  3. Step 3: Cross multiply
    156,426,973.32x = 215,867,825.40 × 85,860,493.67
  4. Step 4: Simplify right side
    156,426,973.32x = 18,534,518,055,234,028
  5. Step 5: Solve for x
    x = 18,534,518,055,234,028/156,426,973.32
  6. Step 6: Final answer
    x = 118,486,714.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.