Home / 113,509,109.76-156,642,568.80-61,298,141.16

Finding the Fourth Proportional to 113,509,109.76, 156,642,568.80 and 61,298,141.16

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Solution

The fourth proportional to 113,509,109.76, 156,642,568.80 and 61,298,141.16 is: 84,591,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,509,109.76 : 156,642,568.80 = 61,298,141.16 : x
  2. Step 2: Convert to fraction form
    113,509,109.76/156,642,568.80 = 61,298,141.16/x
  3. Step 3: Cross multiply
    113,509,109.76x = 156,642,568.80 × 61,298,141.16
  4. Step 4: Simplify right side
    113,509,109.76x = 9,601,898,293,967,412
  5. Step 5: Solve for x
    x = 9,601,898,293,967,412/113,509,109.76
  6. Step 6: Final answer
    x = 84,591,433.36

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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.