Home / 65,616,136.20-98,424,204.30-20,172,025.80

Finding the Fourth Proportional to 65,616,136.20, 98,424,204.30 and 20,172,025.80

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Solution

The fourth proportional to 65,616,136.20, 98,424,204.30 and 20,172,025.80 is: 30,258,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,616,136.20 : 98,424,204.30 = 20,172,025.80 : x
  2. Step 2: Convert to fraction form
    65,616,136.20/98,424,204.30 = 20,172,025.80/x
  3. Step 3: Cross multiply
    65,616,136.20x = 98,424,204.30 × 20,172,025.80
  4. Step 4: Simplify right side
    65,616,136.20x = 1,985,415,588,484,071
  5. Step 5: Solve for x
    x = 1,985,415,588,484,071/65,616,136.20
  6. Step 6: Final answer
    x = 30,258,038.70

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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.