Home / 145,166,135.40-217,749,203.10-99,181,981.80

Finding the Fourth Proportional to 145,166,135.40, 217,749,203.10 and 99,181,981.80

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Solution

The fourth proportional to 145,166,135.40, 217,749,203.10 and 99,181,981.80 is: 148,772,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,166,135.40 : 217,749,203.10 = 99,181,981.80 : x
  2. Step 2: Convert to fraction form
    145,166,135.40/217,749,203.10 = 99,181,981.80/x
  3. Step 3: Cross multiply
    145,166,135.40x = 217,749,203.10 × 99,181,981.80
  4. Step 4: Simplify right side
    145,166,135.40x = 21,596,797,498,828,704
  5. Step 5: Solve for x
    x = 21,596,797,498,828,704/145,166,135.40
  6. Step 6: Final answer
    x = 148,772,972.70

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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.