Home / 84,309,632.78-116,311,666.50-56,441,321.69

Finding the Fourth Proportional to 84,309,632.78, 116,311,666.50 and 56,441,321.69

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Solution

The fourth proportional to 84,309,632.78, 116,311,666.50 and 56,441,321.69 is: 77,865,173.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,309,632.78 : 116,311,666.50 = 56,441,321.69 : x
  2. Step 2: Convert to fraction form
    84,309,632.78/116,311,666.50 = 56,441,321.69/x
  3. Step 3: Cross multiply
    84,309,632.78x = 116,311,666.50 × 56,441,321.69
  4. Step 4: Simplify right side
    84,309,632.78x = 6,564,784,184,644,938
  5. Step 5: Solve for x
    x = 6,564,784,184,644,938/84,309,632.78
  6. Step 6: Final answer
    x = 77,865,173.51

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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.