Home / 131,868,936.80-197,803,405.20-85,952,434.40

Finding the Fourth Proportional to 131,868,936.80, 197,803,405.20 and 85,952,434.40

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Solution

The fourth proportional to 131,868,936.80, 197,803,405.20 and 85,952,434.40 is: 128,928,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,868,936.80 : 197,803,405.20 = 85,952,434.40 : x
  2. Step 2: Convert to fraction form
    131,868,936.80/197,803,405.20 = 85,952,434.40/x
  3. Step 3: Cross multiply
    131,868,936.80x = 197,803,405.20 × 85,952,434.40
  4. Step 4: Simplify right side
    131,868,936.80x = 17,001,684,209,549,620
  5. Step 5: Solve for x
    x = 17,001,684,209,549,620/131,868,936.80
  6. Step 6: Final answer
    x = 128,928,651.60

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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.