Home / 38,421,994.65-53,022,194.10-20,780,916.90

Finding the Fourth Proportional to 38,421,994.65, 53,022,194.10 and 20,780,916.90

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Solution

The fourth proportional to 38,421,994.65, 53,022,194.10 and 20,780,916.90 is: 28,677,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421,994.65 : 53,022,194.10 = 20,780,916.90 : x
  2. Step 2: Convert to fraction form
    38,421,994.65/53,022,194.10 = 20,780,916.90/x
  3. Step 3: Cross multiply
    38,421,994.65x = 53,022,194.10 × 20,780,916.90
  4. Step 4: Simplify right side
    38,421,994.65x = 1,101,849,809,447,770.25
  5. Step 5: Solve for x
    x = 1,101,849,809,447,770.25/38,421,994.65
  6. Step 6: Final answer
    x = 28,677,579.59

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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.