Home / 99,168,437.40-148,752,656.10-71,816,940.60

Finding the Fourth Proportional to 99,168,437.40, 148,752,656.10 and 71,816,940.60

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Solution

The fourth proportional to 99,168,437.40, 148,752,656.10 and 71,816,940.60 is: 107,725,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,168,437.40 : 148,752,656.10 = 71,816,940.60 : x
  2. Step 2: Convert to fraction form
    99,168,437.40/148,752,656.10 = 71,816,940.60/x
  3. Step 3: Cross multiply
    99,168,437.40x = 148,752,656.10 × 71,816,940.60
  4. Step 4: Simplify right side
    99,168,437.40x = 10,682,960,667,225,926
  5. Step 5: Solve for x
    x = 10,682,960,667,225,926/99,168,437.40
  6. Step 6: Final answer
    x = 107,725,410.90

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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.