Home / 214,602,631.60-321,987,928.20-78,301,793.20

Finding the Fourth Proportional to 214,602,631.60, 321,987,928.20 and 78,301,793.20

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Solution

The fourth proportional to 214,602,631.60, 321,987,928.20 and 78,301,793.20 is: 117,483,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,602,631.60 : 321,987,928.20 = 78,301,793.20 : x
  2. Step 2: Convert to fraction form
    214,602,631.60/321,987,928.20 = 78,301,793.20/x
  3. Step 3: Cross multiply
    214,602,631.60x = 321,987,928.20 × 78,301,793.20
  4. Step 4: Simplify right side
    214,602,631.60x = 25,212,232,166,812,848
  5. Step 5: Solve for x
    x = 25,212,232,166,812,848/214,602,631.60
  6. Step 6: Final answer
    x = 117,483,331.77

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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.