Home / 126,329,009.40-189,493,514.10-30,590,897.40

Finding the Fourth Proportional to 126,329,009.40, 189,493,514.10 and 30,590,897.40

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Solution

The fourth proportional to 126,329,009.40, 189,493,514.10 and 30,590,897.40 is: 45,886,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,329,009.40 : 189,493,514.10 = 30,590,897.40 : x
  2. Step 2: Convert to fraction form
    126,329,009.40/189,493,514.10 = 30,590,897.40/x
  3. Step 3: Cross multiply
    126,329,009.40x = 189,493,514.10 × 30,590,897.40
  4. Step 4: Simplify right side
    126,329,009.40x = 5,796,776,647,798,553
  5. Step 5: Solve for x
    x = 5,796,776,647,798,553/126,329,009.40
  6. Step 6: Final answer
    x = 45,886,346.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.