Home / 210,280,443.40-315,420,665.10-73,948,112.20

Finding the Fourth Proportional to 210,280,443.40, 315,420,665.10 and 73,948,112.20

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Solution

The fourth proportional to 210,280,443.40, 315,420,665.10 and 73,948,112.20 is: 110,922,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,280,443.40 : 315,420,665.10 = 73,948,112.20 : x
  2. Step 2: Convert to fraction form
    210,280,443.40/315,420,665.10 = 73,948,112.20/x
  3. Step 3: Cross multiply
    210,280,443.40x = 315,420,665.10 × 73,948,112.20
  4. Step 4: Simplify right side
    210,280,443.40x = 23,324,762,733,013,428
  5. Step 5: Solve for x
    x = 23,324,762,733,013,428/210,280,443.40
  6. Step 6: Final answer
    x = 110,922,168.30

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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.