Home / 129,111,953.60-178,185,171.36-74,118,440

Finding the Fourth Proportional to 129,111,953.60, 178,185,171.36 and 74,118,440

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Solution

The fourth proportional to 129,111,953.60, 178,185,171.36 and 74,118,440 is: 102,289,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,111,953.60 : 178,185,171.36 = 74,118,440 : x
  2. Step 2: Convert to fraction form
    129,111,953.60/178,185,171.36 = 74,118,440/x
  3. Step 3: Cross multiply
    129,111,953.60x = 178,185,171.36 × 74,118,440
  4. Step 4: Simplify right side
    129,111,953.60x = 13,206,806,932,335,880
  5. Step 5: Solve for x
    x = 13,206,806,932,335,880/129,111,953.60
  6. Step 6: Final answer
    x = 102,289,575.55

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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.