Home / 145,788,231.46-201,188,121.15-79,712,993.38

Finding the Fourth Proportional to 145,788,231.46, 201,188,121.15 and 79,712,993.38

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Solution

The fourth proportional to 145,788,231.46, 201,188,121.15 and 79,712,993.38 is: 110,004,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,788,231.46 : 201,188,121.15 = 79,712,993.38 : x
  2. Step 2: Convert to fraction form
    145,788,231.46/201,188,121.15 = 79,712,993.38/x
  3. Step 3: Cross multiply
    145,788,231.46x = 201,188,121.15 × 79,712,993.38
  4. Step 4: Simplify right side
    145,788,231.46x = 16,037,307,369,364,588
  5. Step 5: Solve for x
    x = 16,037,307,369,364,588/145,788,231.46
  6. Step 6: Final answer
    x = 110,004,128.65

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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.