Home / 77,273,406.40-115,910,109.60-57,999,812.80

Finding the Fourth Proportional to 77,273,406.40, 115,910,109.60 and 57,999,812.80

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Solution

The fourth proportional to 77,273,406.40, 115,910,109.60 and 57,999,812.80 is: 86,999,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,273,406.40 : 115,910,109.60 = 57,999,812.80 : x
  2. Step 2: Convert to fraction form
    77,273,406.40/115,910,109.60 = 57,999,812.80/x
  3. Step 3: Cross multiply
    77,273,406.40x = 115,910,109.60 × 57,999,812.80
  4. Step 4: Simplify right side
    77,273,406.40x = 6,722,764,658,427,482
  5. Step 5: Solve for x
    x = 6,722,764,658,427,482/77,273,406.40
  6. Step 6: Final answer
    x = 86,999,719.20

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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.