Home / 78,624,000.60-117,936,000.90-55,665,749.40

Finding the Fourth Proportional to 78,624,000.60, 117,936,000.90 and 55,665,749.40

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Solution

The fourth proportional to 78,624,000.60, 117,936,000.90 and 55,665,749.40 is: 83,498,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,624,000.60 : 117,936,000.90 = 55,665,749.40 : x
  2. Step 2: Convert to fraction form
    78,624,000.60/117,936,000.90 = 55,665,749.40/x
  3. Step 3: Cross multiply
    78,624,000.60x = 117,936,000.90 × 55,665,749.40
  4. Step 4: Simplify right side
    78,624,000.60x = 6,564,995,871,337,575
  5. Step 5: Solve for x
    x = 6,564,995,871,337,575/78,624,000.60
  6. Step 6: Final answer
    x = 83,498,624.10

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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.