Home / 131,004,043.20-196,506,064.80-90,189,374.40

Finding the Fourth Proportional to 131,004,043.20, 196,506,064.80 and 90,189,374.40

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Solution

The fourth proportional to 131,004,043.20, 196,506,064.80 and 90,189,374.40 is: 135,284,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,004,043.20 : 196,506,064.80 = 90,189,374.40 : x
  2. Step 2: Convert to fraction form
    131,004,043.20/196,506,064.80 = 90,189,374.40/x
  3. Step 3: Cross multiply
    131,004,043.20x = 196,506,064.80 × 90,189,374.40
  4. Step 4: Simplify right side
    131,004,043.20x = 17,722,759,050,117,864
  5. Step 5: Solve for x
    x = 17,722,759,050,117,864/131,004,043.20
  6. Step 6: Final answer
    x = 135,284,061.60

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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.