Home / 209,838,812.10-314,758,218.15-66,231,644.10

Finding the Fourth Proportional to 209,838,812.10, 314,758,218.15 and 66,231,644.10

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Solution

The fourth proportional to 209,838,812.10, 314,758,218.15 and 66,231,644.10 is: 99,347,466.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,838,812.10 : 314,758,218.15 = 66,231,644.10 : x
  2. Step 2: Convert to fraction form
    209,838,812.10/314,758,218.15 = 66,231,644.10/x
  3. Step 3: Cross multiply
    209,838,812.10x = 314,758,218.15 × 66,231,644.10
  4. Step 4: Simplify right side
    209,838,812.10x = 20,846,954,282,060,960
  5. Step 5: Solve for x
    x = 20,846,954,282,060,960/209,838,812.10
  6. Step 6: Final answer
    x = 99,347,466.15

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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.