Home / 260,018,643.80-390,027,965.70-87,438,099.80

Finding the Fourth Proportional to 260,018,643.80, 390,027,965.70 and 87,438,099.80

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Solution

The fourth proportional to 260,018,643.80, 390,027,965.70 and 87,438,099.80 is: 131,157,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,018,643.80 : 390,027,965.70 = 87,438,099.80 : x
  2. Step 2: Convert to fraction form
    260,018,643.80/390,027,965.70 = 87,438,099.80/x
  3. Step 3: Cross multiply
    260,018,643.80x = 390,027,965.70 × 87,438,099.80
  4. Step 4: Simplify right side
    260,018,643.80x = 34,103,304,189,667,576
  5. Step 5: Solve for x
    x = 34,103,304,189,667,576/260,018,643.80
  6. Step 6: Final answer
    x = 131,157,149.70

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