Home / 81,656,069.60-122,484,104.40-74,097,797.60

Finding the Fourth Proportional to 81,656,069.60, 122,484,104.40 and 74,097,797.60

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Solution

The fourth proportional to 81,656,069.60, 122,484,104.40 and 74,097,797.60 is: 111,146,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,656,069.60 : 122,484,104.40 = 74,097,797.60 : x
  2. Step 2: Convert to fraction form
    81,656,069.60/122,484,104.40 = 74,097,797.60/x
  3. Step 3: Cross multiply
    81,656,069.60x = 122,484,104.40 × 74,097,797.60
  4. Step 4: Simplify right side
    81,656,069.60x = 9,075,802,377,048,470
  5. Step 5: Solve for x
    x = 9,075,802,377,048,470/81,656,069.60
  6. Step 6: Final answer
    x = 111,146,696.40

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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.