Home / 28,997,315.55-43,494,989.18-7,432,128.68

Finding the Fourth Proportional to 28,997,315.55, 43,494,989.18 and 7,432,128.68

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Solution

The fourth proportional to 28,997,315.55, 43,494,989.18 and 7,432,128.68 is: 11,147,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997,315.55 : 43,494,989.18 = 7,432,128.68 : x
  2. Step 2: Convert to fraction form
    28,997,315.55/43,494,989.18 = 7,432,128.68/x
  3. Step 3: Cross multiply
    28,997,315.55x = 43,494,989.18 × 7,432,128.68
  4. Step 4: Simplify right side
    28,997,315.55x = 323,260,356,266,332.06
  5. Step 5: Solve for x
    x = 323,260,356,266,332.06/28,997,315.55
  6. Step 6: Final answer
    x = 11,147,940.77

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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.