Home / 136,594,431.28-188,501,797.56-74,713,409.20

Finding the Fourth Proportional to 136,594,431.28, 188,501,797.56 and 74,713,409.20

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Solution

The fourth proportional to 136,594,431.28, 188,501,797.56 and 74,713,409.20 is: 103,105,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,594,431.28 : 188,501,797.56 = 74,713,409.20 : x
  2. Step 2: Convert to fraction form
    136,594,431.28/188,501,797.56 = 74,713,409.20/x
  3. Step 3: Cross multiply
    136,594,431.28x = 188,501,797.56 × 74,713,409.20
  4. Step 4: Simplify right side
    136,594,431.28x = 14,083,611,936,035,842
  5. Step 5: Solve for x
    x = 14,083,611,936,035,842/136,594,431.28
  6. Step 6: Final answer
    x = 103,105,315.52

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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.