Home / 15,289,582.45-21,099,877.70-8,320,553.74

Finding the Fourth Proportional to 15,289,582.45, 21,099,877.70 and 8,320,553.74

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Solution

The fourth proportional to 15,289,582.45, 21,099,877.70 and 8,320,553.74 is: 11,482,502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289,582.45 : 21,099,877.70 = 8,320,553.74 : x
  2. Step 2: Convert to fraction form
    15,289,582.45/21,099,877.70 = 8,320,553.74/x
  3. Step 3: Cross multiply
    15,289,582.45x = 21,099,877.70 × 8,320,553.74
  4. Step 4: Simplify right side
    15,289,582.45x = 175,562,666,205,617.94
  5. Step 5: Solve for x
    x = 175,562,666,205,617.94/15,289,582.45
  6. Step 6: Final answer
    x = 11,482,502.33

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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.