Home / 20,640,898.14-28,482,744.06-12,152,688.63

Finding the Fourth Proportional to 20,640,898.14, 28,482,744.06 and 12,152,688.63

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Solution

The fourth proportional to 20,640,898.14, 28,482,744.06 and 12,152,688.63 is: 16,769,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640,898.14 : 28,482,744.06 = 12,152,688.63 : x
  2. Step 2: Convert to fraction form
    20,640,898.14/28,482,744.06 = 12,152,688.63/x
  3. Step 3: Cross multiply
    20,640,898.14x = 28,482,744.06 × 12,152,688.63
  4. Step 4: Simplify right side
    20,640,898.14x = 346,141,919,889,162.06
  5. Step 5: Solve for x
    x = 346,141,919,889,162.06/20,640,898.14
  6. Step 6: Final answer
    x = 16,769,712.13

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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.