Home / 342,179,747.81-513,064,647.93-108,909,699.47

Finding the Fourth Proportional to 342,179,747.81, 513,064,647.93 and 108,909,699.47

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Solution

The fourth proportional to 342,179,747.81, 513,064,647.93 and 108,909,699.47 is: 163,299,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,179,747.81 : 513,064,647.93 = 108,909,699.47 : x
  2. Step 2: Convert to fraction form
    342,179,747.81/513,064,647.93 = 108,909,699.47/x
  3. Step 3: Cross multiply
    342,179,747.81x = 513,064,647.93 × 108,909,699.47
  4. Step 4: Simplify right side
    342,179,747.81x = 55,877,716,614,737,656
  5. Step 5: Solve for x
    x = 55,877,716,614,737,656/342,179,747.81
  6. Step 6: Final answer
    x = 163,299,309.71

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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.