Home / 127,323,042.65-190,965,376.08-81,584,535.05

Finding the Fourth Proportional to 127,323,042.65, 190,965,376.08 and 81,584,535.05

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Solution

The fourth proportional to 127,323,042.65, 190,965,376.08 and 81,584,535.05 is: 122,364,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,323,042.65 : 190,965,376.08 = 81,584,535.05 : x
  2. Step 2: Convert to fraction form
    127,323,042.65/190,965,376.08 = 81,584,535.05/x
  3. Step 3: Cross multiply
    127,323,042.65x = 190,965,376.08 × 81,584,535.05
  4. Step 4: Simplify right side
    127,323,042.65x = 15,579,821,417,180,366
  5. Step 5: Solve for x
    x = 15,579,821,417,180,366/127,323,042.65
  6. Step 6: Final answer
    x = 122,364,507.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.