Home / 5,186,278.78-7,780,640.10-1,774,602.52

Finding the Fourth Proportional to 5,186,278.78, 7,780,640.10 and 1,774,602.52

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Solution

The fourth proportional to 5,186,278.78, 7,780,640.10 and 1,774,602.52 is: 2,662,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186,278.78 : 7,780,640.10 = 1,774,602.52 : x
  2. Step 2: Convert to fraction form
    5,186,278.78/7,780,640.10 = 1,774,602.52/x
  3. Step 3: Cross multiply
    5,186,278.78x = 7,780,640.10 × 1,774,602.52
  4. Step 4: Simplify right side
    5,186,278.78x = 13,807,543,528,673.05
  5. Step 5: Solve for x
    x = 13,807,543,528,673.05/5,186,278.78
  6. Step 6: Final answer
    x = 2,662,321.89

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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.