Home / 209,952,004.30-314,928,006.45-129,218,461.90

Finding the Fourth Proportional to 209,952,004.30, 314,928,006.45 and 129,218,461.90

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Solution

The fourth proportional to 209,952,004.30, 314,928,006.45 and 129,218,461.90 is: 193,827,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,004.30 : 314,928,006.45 = 129,218,461.90 : x
  2. Step 2: Convert to fraction form
    209,952,004.30/314,928,006.45 = 129,218,461.90/x
  3. Step 3: Cross multiply
    209,952,004.30x = 314,928,006.45 × 129,218,461.90
  4. Step 4: Simplify right side
    209,952,004.30x = 40,694,512,602,702,280
  5. Step 5: Solve for x
    x = 40,694,512,602,702,280/209,952,004.30
  6. Step 6: Final answer
    x = 193,827,692.85

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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.