Home / 145,166,130.40-217,749,195.60-99,181,976.80

Finding the Fourth Proportional to 145,166,130.40, 217,749,195.60 and 99,181,976.80

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Solution

The fourth proportional to 145,166,130.40, 217,749,195.60 and 99,181,976.80 is: 148,772,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,166,130.40 : 217,749,195.60 = 99,181,976.80 : x
  2. Step 2: Convert to fraction form
    145,166,130.40/217,749,195.60 = 99,181,976.80/x
  3. Step 3: Cross multiply
    145,166,130.40x = 217,749,195.60 × 99,181,976.80
  4. Step 4: Simplify right side
    145,166,130.40x = 21,596,795,666,217,860
  5. Step 5: Solve for x
    x = 21,596,795,666,217,860/145,166,130.40
  6. Step 6: Final answer
    x = 148,772,965.20

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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.