Home / 143,179,565.12-197,582,237.78-87,518,181.65

Finding the Fourth Proportional to 143,179,565.12, 197,582,237.78 and 87,518,181.65

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Solution

The fourth proportional to 143,179,565.12, 197,582,237.78 and 87,518,181.65 is: 120,771,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,179,565.12 : 197,582,237.78 = 87,518,181.65 : x
  2. Step 2: Convert to fraction form
    143,179,565.12/197,582,237.78 = 87,518,181.65/x
  3. Step 3: Cross multiply
    143,179,565.12x = 197,582,237.78 × 87,518,181.65
  4. Step 4: Simplify right side
    143,179,565.12x = 17,292,038,176,899,898
  5. Step 5: Solve for x
    x = 17,292,038,176,899,898/143,179,565.12
  6. Step 6: Final answer
    x = 120,771,690.87

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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.