Home / 13,812,499.54-20,720,640.12-4,712,153.80

Finding the Fourth Proportional to 13,812,499.54, 20,720,640.12 and 4,712,153.80

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Solution

The fourth proportional to 13,812,499.54, 20,720,640.12 and 4,712,153.80 is: 7,068,875.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812,499.54 : 20,720,640.12 = 4,712,153.80 : x
  2. Step 2: Convert to fraction form
    13,812,499.54/20,720,640.12 = 4,712,153.80/x
  3. Step 3: Cross multiply
    13,812,499.54x = 20,720,640.12 × 4,712,153.80
  4. Step 4: Simplify right side
    13,812,499.54x = 97,638,843,079,890.45
  5. Step 5: Solve for x
    x = 97,638,843,079,890.45/13,812,499.54
  6. Step 6: Final answer
    x = 7,068,875.75

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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.