Home / 52,178,879.70-78,193,669.95-38,424,690.90

Finding the Fourth Proportional to 52,178,879.70, 78,193,669.95 and 38,424,690.90

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Solution

The fourth proportional to 52,178,879.70, 78,193,669.95 and 38,424,690.90 is: 57,582,064.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,178,879.70 : 78,193,669.95 = 38,424,690.90 : x
  2. Step 2: Convert to fraction form
    52,178,879.70/78,193,669.95 = 38,424,690.90/x
  3. Step 3: Cross multiply
    52,178,879.70x = 78,193,669.95 × 38,424,690.90
  4. Step 4: Simplify right side
    52,178,879.70x = 3,004,567,598,165,368.50
  5. Step 5: Solve for x
    x = 3,004,567,598,165,368.50/52,178,879.70
  6. Step 6: Final answer
    x = 57,582,064.15

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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.