Home / 86,867,816.34-130,317,743.43-28,578,774.90

Finding the Fourth Proportional to 86,867,816.34, 130,317,743.43 and 28,578,774.90

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Solution

The fourth proportional to 86,867,816.34, 130,317,743.43 and 28,578,774.90 is: 42,873,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,867,816.34 : 130,317,743.43 = 28,578,774.90 : x
  2. Step 2: Convert to fraction form
    86,867,816.34/130,317,743.43 = 28,578,774.90/x
  3. Step 3: Cross multiply
    86,867,816.34x = 130,317,743.43 × 28,578,774.90
  4. Step 4: Simplify right side
    86,867,816.34x = 3,724,321,454,961,924
  5. Step 5: Solve for x
    x = 3,724,321,454,961,924/86,867,816.34
  6. Step 6: Final answer
    x = 42,873,432.44

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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.