Home / 121,029,722.27-166,998,173.95-72,141,699.23

Finding the Fourth Proportional to 121,029,722.27, 166,998,173.95 and 72,141,699.23

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Solution

The fourth proportional to 121,029,722.27, 166,998,173.95 and 72,141,699.23 is: 99,541,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,029,722.27 : 166,998,173.95 = 72,141,699.23 : x
  2. Step 2: Convert to fraction form
    121,029,722.27/166,998,173.95 = 72,141,699.23/x
  3. Step 3: Cross multiply
    121,029,722.27x = 166,998,173.95 × 72,141,699.23
  4. Step 4: Simplify right side
    121,029,722.27x = 12,047,532,037,060,120
  5. Step 5: Solve for x
    x = 12,047,532,037,060,120/121,029,722.27
  6. Step 6: Final answer
    x = 99,541,929.13

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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.