Home / 78,096,846.30-117,183,655.38-31,408,468.32

Finding the Fourth Proportional to 78,096,846.30, 117,183,655.38 and 31,408,468.32

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Solution

The fourth proportional to 78,096,846.30, 117,183,655.38 and 31,408,468.32 is: 47,128,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,096,846.30 : 117,183,655.38 = 31,408,468.32 : x
  2. Step 2: Convert to fraction form
    78,096,846.30/117,183,655.38 = 31,408,468.32/x
  3. Step 3: Cross multiply
    78,096,846.30x = 117,183,655.38 × 31,408,468.32
  4. Step 4: Simplify right side
    78,096,846.30x = 3,680,559,127,624,527.50
  5. Step 5: Solve for x
    x = 3,680,559,127,624,527.50/78,096,846.30
  6. Step 6: Final answer
    x = 47,128,140.28

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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.