Home / 72,645,093,007.20-108,967,639,510.80-66,020,202,645.30

Finding the Fourth Proportional to 72,645,093,007.20, 108,967,639,510.80 and 66,020,202,645.30

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Solution

The fourth proportional to 72,645,093,007.20, 108,967,639,510.80 and 66,020,202,645.30 is: 99,030,303,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,645,093,007.20 : 108,967,639,510.80 = 66,020,202,645.30 : x
  2. Step 2: Convert to fraction form
    72,645,093,007.20/108,967,639,510.80 = 66,020,202,645.30/x
  3. Step 3: Cross multiply
    72,645,093,007.20x = 108,967,639,510.80 × 66,020,202,645.30
  4. Step 4: Simplify right side
    72,645,093,007.20x = 7,194,065,642,283,015,864,320
  5. Step 5: Solve for x
    x = 7,194,065,642,283,015,864,320/72,645,093,007.20
  6. Step 6: Final answer
    x = 99,030,303,967.95

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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.