Home / 120,194,239,737.60-180,291,359,606.40-84,930,365,894.40

Finding the Fourth Proportional to 120,194,239,737.60, 180,291,359,606.40 and 84,930,365,894.40

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Solution

The fourth proportional to 120,194,239,737.60, 180,291,359,606.40 and 84,930,365,894.40 is: 127,395,548,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,194,239,737.60 : 180,291,359,606.40 = 84,930,365,894.40 : x
  2. Step 2: Convert to fraction form
    120,194,239,737.60/180,291,359,606.40 = 84,930,365,894.40/x
  3. Step 3: Cross multiply
    120,194,239,737.60x = 180,291,359,606.40 × 84,930,365,894.40
  4. Step 4: Simplify right side
    120,194,239,737.60x = 15,312,211,138,970,399,014,912
  5. Step 5: Solve for x
    x = 15,312,211,138,970,399,014,912/120,194,239,737.60
  6. Step 6: Final answer
    x = 127,395,548,841.60

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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.