Home / 75,136,462.82-112,703,089.68-20,549,048.54

Finding the Fourth Proportional to 75,136,462.82, 112,703,089.68 and 20,549,048.54

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Solution

The fourth proportional to 75,136,462.82, 112,703,089.68 and 20,549,048.54 is: 30,823,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136,462.82 : 112,703,089.68 = 20,549,048.54 : x
  2. Step 2: Convert to fraction form
    75,136,462.82/112,703,089.68 = 20,549,048.54/x
  3. Step 3: Cross multiply
    75,136,462.82x = 112,703,089.68 × 20,549,048.54
  4. Step 4: Simplify right side
    75,136,462.82x = 2,315,941,260,442,293
  5. Step 5: Solve for x
    x = 2,315,941,260,442,293/75,136,462.82
  6. Step 6: Final answer
    x = 30,823,133.98

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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.