Home / 68,777,795.61-103,155,109.40-19,590,190.74

Finding the Fourth Proportional to 68,777,795.61, 103,155,109.40 and 19,590,190.74

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Solution

The fourth proportional to 68,777,795.61, 103,155,109.40 and 19,590,190.74 is: 29,381,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,777,795.61 : 103,155,109.40 = 19,590,190.74 : x
  2. Step 2: Convert to fraction form
    68,777,795.61/103,155,109.40 = 19,590,190.74/x
  3. Step 3: Cross multiply
    68,777,795.61x = 103,155,109.40 × 19,590,190.74
  4. Step 4: Simplify right side
    68,777,795.61x = 2,020,828,269,000,542.25
  5. Step 5: Solve for x
    x = 2,020,828,269,000,542.25/68,777,795.61
  6. Step 6: Final answer
    x = 29,381,986.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.