Home / 81,717,378.31-112,770,742.76-45,049,261.51

Finding the Fourth Proportional to 81,717,378.31, 112,770,742.76 and 45,049,261.51

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Solution

The fourth proportional to 81,717,378.31, 112,770,742.76 and 45,049,261.51 is: 62,168,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717,378.31 : 112,770,742.76 = 45,049,261.51 : x
  2. Step 2: Convert to fraction form
    81,717,378.31/112,770,742.76 = 45,049,261.51/x
  3. Step 3: Cross multiply
    81,717,378.31x = 112,770,742.76 × 45,049,261.51
  4. Step 4: Simplify right side
    81,717,378.31x = 5,080,238,681,272,179
  5. Step 5: Solve for x
    x = 5,080,238,681,272,179/81,717,378.31
  6. Step 6: Final answer
    x = 62,168,400.24

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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.