Home / 154,982,479.76-213,867,921.48-85,366,362.32

Finding the Fourth Proportional to 154,982,479.76, 213,867,921.48 and 85,366,362.32

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Solution

The fourth proportional to 154,982,479.76, 213,867,921.48 and 85,366,362.32 is: 117,801,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,982,479.76 : 213,867,921.48 = 85,366,362.32 : x
  2. Step 2: Convert to fraction form
    154,982,479.76/213,867,921.48 = 85,366,362.32/x
  3. Step 3: Cross multiply
    154,982,479.76x = 213,867,921.48 × 85,366,362.32
  4. Step 4: Simplify right side
    154,982,479.76x = 18,257,126,473,686,988
  5. Step 5: Solve for x
    x = 18,257,126,473,686,988/154,982,479.76
  6. Step 6: Final answer
    x = 117,801,228.25

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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.