Home / 312,304,987.16-430,973,547.72-173,072,759.48

Finding the Fourth Proportional to 312,304,987.16, 430,973,547.72 and 173,072,759.48

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Solution

The fourth proportional to 312,304,987.16, 430,973,547.72 and 173,072,759.48 is: 238,836,343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,304,987.16 : 430,973,547.72 = 173,072,759.48 : x
  2. Step 2: Convert to fraction form
    312,304,987.16/430,973,547.72 = 173,072,759.48/x
  3. Step 3: Cross multiply
    312,304,987.16x = 430,973,547.72 × 173,072,759.48
  4. Step 4: Simplify right side
    312,304,987.16x = 74,589,781,166,785,856
  5. Step 5: Solve for x
    x = 74,589,781,166,785,856/312,304,987.16
  6. Step 6: Final answer
    x = 238,836,343.43

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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.