Home / 121,990,708.80-183,127,780.80-73,523,289.60

Finding the Fourth Proportional to 121,990,708.80, 183,127,780.80 and 73,523,289.60

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Solution

The fourth proportional to 121,990,708.80, 183,127,780.80 and 73,523,289.60 is: 110,370,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,990,708.80 : 183,127,780.80 = 73,523,289.60 : x
  2. Step 2: Convert to fraction form
    121,990,708.80/183,127,780.80 = 73,523,289.60/x
  3. Step 3: Cross multiply
    121,990,708.80x = 183,127,780.80 × 73,523,289.60
  4. Step 4: Simplify right side
    121,990,708.80x = 13,464,156,861,563,720
  5. Step 5: Solve for x
    x = 13,464,156,861,563,720/121,990,708.80
  6. Step 6: Final answer
    x = 110,370,347.00

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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.