Home / 81,858,040.32-112,963,402.80-45,187,824

Finding the Fourth Proportional to 81,858,040.32, 112,963,402.80 and 45,187,824

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Solution

The fourth proportional to 81,858,040.32, 112,963,402.80 and 45,187,824 is: 62,358,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,858,040.32 : 112,963,402.80 = 45,187,824 : x
  2. Step 2: Convert to fraction form
    81,858,040.32/112,963,402.80 = 45,187,824/x
  3. Step 3: Cross multiply
    81,858,040.32x = 112,963,402.80 × 45,187,824
  4. Step 4: Simplify right side
    81,858,040.32x = 5,104,570,364,167,507
  5. Step 5: Solve for x
    x = 5,104,570,364,167,507/81,858,040.32
  6. Step 6: Final answer
    x = 62,358,814.65

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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.