Home / 154,588,990.51-213,331,549.39-84,973,631.23

Finding the Fourth Proportional to 154,588,990.51, 213,331,549.39 and 84,973,631.23

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Solution

The fourth proportional to 154,588,990.51, 213,331,549.39 and 84,973,631.23 is: 117,262,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,588,990.51 : 213,331,549.39 = 84,973,631.23 : x
  2. Step 2: Convert to fraction form
    154,588,990.51/213,331,549.39 = 84,973,631.23/x
  3. Step 3: Cross multiply
    154,588,990.51x = 213,331,549.39 × 84,973,631.23
  4. Step 4: Simplify right side
    154,588,990.51x = 18,127,556,407,590,392
  5. Step 5: Solve for x
    x = 18,127,556,407,590,392/154,588,990.51
  6. Step 6: Final answer
    x = 117,262,919.87

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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.