Home / 15,677,984.70-21,634,887.72-8,709,113.94

Finding the Fourth Proportional to 15,677,984.70, 21,634,887.72 and 8,709,113.94

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Solution

The fourth proportional to 15,677,984.70, 21,634,887.72 and 8,709,113.94 is: 12,018,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677,984.70 : 21,634,887.72 = 8,709,113.94 : x
  2. Step 2: Convert to fraction form
    15,677,984.70/21,634,887.72 = 8,709,113.94/x
  3. Step 3: Cross multiply
    15,677,984.70x = 21,634,887.72 × 8,709,113.94
  4. Step 4: Simplify right side
    15,677,984.70x = 188,420,702,232,586.78
  5. Step 5: Solve for x
    x = 188,420,702,232,586.78/15,677,984.70
  6. Step 6: Final answer
    x = 12,018,171.07

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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.