Home / 154,341,702.36-212,983,727.40-91,620,481.50

Finding the Fourth Proportional to 154,341,702.36, 212,983,727.40 and 91,620,481.50

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Solution

The fourth proportional to 154,341,702.36, 212,983,727.40 and 91,620,481.50 is: 126,431,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,341,702.36 : 212,983,727.40 = 91,620,481.50 : x
  2. Step 2: Convert to fraction form
    154,341,702.36/212,983,727.40 = 91,620,481.50/x
  3. Step 3: Cross multiply
    154,341,702.36x = 212,983,727.40 × 91,620,481.50
  4. Step 4: Simplify right side
    154,341,702.36x = 19,513,671,656,052,744
  5. Step 5: Solve for x
    x = 19,513,671,656,052,744/154,341,702.36
  6. Step 6: Final answer
    x = 126,431,621.25

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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.