Home / 209,867,699.80-314,801,549.70-123,517,466.20

Finding the Fourth Proportional to 209,867,699.80, 314,801,549.70 and 123,517,466.20

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Solution

The fourth proportional to 209,867,699.80, 314,801,549.70 and 123,517,466.20 is: 185,276,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,867,699.80 : 314,801,549.70 = 123,517,466.20 : x
  2. Step 2: Convert to fraction form
    209,867,699.80/314,801,549.70 = 123,517,466.20/x
  3. Step 3: Cross multiply
    209,867,699.80x = 314,801,549.70 × 123,517,466.20
  4. Step 4: Simplify right side
    209,867,699.80x = 38,883,489,774,777,368
  5. Step 5: Solve for x
    x = 38,883,489,774,777,368/209,867,699.80
  6. Step 6: Final answer
    x = 185,276,199.30

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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.