Home / 218,823,321.20-328,234,981.80-167,804,985.20

Finding the Fourth Proportional to 218,823,321.20, 328,234,981.80 and 167,804,985.20

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Solution

The fourth proportional to 218,823,321.20, 328,234,981.80 and 167,804,985.20 is: 251,707,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,823,321.20 : 328,234,981.80 = 167,804,985.20 : x
  2. Step 2: Convert to fraction form
    218,823,321.20/328,234,981.80 = 167,804,985.20/x
  3. Step 3: Cross multiply
    218,823,321.20x = 328,234,981.80 × 167,804,985.20
  4. Step 4: Simplify right side
    218,823,321.20x = 55,079,466,263,071,264
  5. Step 5: Solve for x
    x = 55,079,466,263,071,264/218,823,321.20
  6. Step 6: Final answer
    x = 251,707,477.80

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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.