Home / 96,793,981.20-145,190,971.80-86,212,400.40

Finding the Fourth Proportional to 96,793,981.20, 145,190,971.80 and 86,212,400.40

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Solution

The fourth proportional to 96,793,981.20, 145,190,971.80 and 86,212,400.40 is: 129,318,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,793,981.20 : 145,190,971.80 = 86,212,400.40 : x
  2. Step 2: Convert to fraction form
    96,793,981.20/145,190,971.80 = 86,212,400.40/x
  3. Step 3: Cross multiply
    96,793,981.20x = 145,190,971.80 × 86,212,400.40
  4. Step 4: Simplify right side
    96,793,981.20x = 12,517,262,195,286,710
  5. Step 5: Solve for x
    x = 12,517,262,195,286,710/96,793,981.20
  6. Step 6: Final answer
    x = 129,318,600.60

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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.