Home / 81,605,121.28-112,610,662.95-46,799,278.72

Finding the Fourth Proportional to 81,605,121.28, 112,610,662.95 and 46,799,278.72

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Solution

The fourth proportional to 81,605,121.28, 112,610,662.95 and 46,799,278.72 is: 64,580,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,605,121.28 : 112,610,662.95 = 46,799,278.72 : x
  2. Step 2: Convert to fraction form
    81,605,121.28/112,610,662.95 = 46,799,278.72/x
  3. Step 3: Cross multiply
    81,605,121.28x = 112,610,662.95 × 46,799,278.72
  4. Step 4: Simplify right side
    81,605,121.28x = 5,270,097,802,241,027
  5. Step 5: Solve for x
    x = 5,270,097,802,241,027/81,605,121.28
  6. Step 6: Final answer
    x = 64,580,478.77

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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.