Home / 135,836,661.51-187,459,205.58-76,308,470.91

Finding the Fourth Proportional to 135,836,661.51, 187,459,205.58 and 76,308,470.91

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Solution

The fourth proportional to 135,836,661.51, 187,459,205.58 and 76,308,470.91 is: 105,308,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,836,661.51 : 187,459,205.58 = 76,308,470.91 : x
  2. Step 2: Convert to fraction form
    135,836,661.51/187,459,205.58 = 76,308,470.91/x
  3. Step 3: Cross multiply
    135,836,661.51x = 187,459,205.58 × 76,308,470.91
  4. Step 4: Simplify right side
    135,836,661.51x = 14,304,725,335,813,140
  5. Step 5: Solve for x
    x = 14,304,725,335,813,140/135,836,661.51
  6. Step 6: Final answer
    x = 105,308,281.11

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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.