Home / 57,031,653.42-78,703,608.65-30,926,127.43

Finding the Fourth Proportional to 57,031,653.42, 78,703,608.65 and 30,926,127.43

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Solution

The fourth proportional to 57,031,653.42, 78,703,608.65 and 30,926,127.43 is: 42,678,016.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,031,653.42 : 78,703,608.65 = 30,926,127.43 : x
  2. Step 2: Convert to fraction form
    57,031,653.42/78,703,608.65 = 30,926,127.43/x
  3. Step 3: Cross multiply
    57,031,653.42x = 78,703,608.65 × 30,926,127.43
  4. Step 4: Simplify right side
    57,031,653.42x = 2,433,997,830,310,750.50
  5. Step 5: Solve for x
    x = 2,433,997,830,310,750.50/57,031,653.42
  6. Step 6: Final answer
    x = 42,678,016.23

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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.