Home / 81,442,836-112,393,440-49,654,840.32

Finding the Fourth Proportional to 81,442,836, 112,393,440 and 49,654,840.32

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Solution

The fourth proportional to 81,442,836, 112,393,440 and 49,654,840.32 is: 68,525,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,442,836 : 112,393,440 = 49,654,840.32 : x
  2. Step 2: Convert to fraction form
    81,442,836/112,393,440 = 49,654,840.32/x
  3. Step 3: Cross multiply
    81,442,836x = 112,393,440 × 49,654,840.32
  4. Step 4: Simplify right side
    81,442,836x = 5,580,878,316,215,501
  5. Step 5: Solve for x
    x = 5,580,878,316,215,501/81,442,836
  6. Step 6: Final answer
    x = 68,525,097.97

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1.5x scale

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.