Home / 154,341,676.40-212,983,691.64-91,620,455.36

Finding the Fourth Proportional to 154,341,676.40, 212,983,691.64 and 91,620,455.36

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Solution

The fourth proportional to 154,341,676.40, 212,983,691.64 and 91,620,455.36 is: 126,431,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,341,676.40 : 212,983,691.64 = 91,620,455.36 : x
  2. Step 2: Convert to fraction form
    154,341,676.40/212,983,691.64 = 91,620,455.36/x
  3. Step 3: Cross multiply
    154,341,676.40x = 212,983,691.64 × 91,620,455.36
  4. Step 4: Simplify right side
    154,341,676.40x = 19,513,662,812,310,624
  5. Step 5: Solve for x
    x = 19,513,662,812,310,624/154,341,676.40
  6. Step 6: Final answer
    x = 126,431,585.22

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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.