Home / 145,078,216.40-217,617,324.60-136,764,117.20

Finding the Fourth Proportional to 145,078,216.40, 217,617,324.60 and 136,764,117.20

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Solution

The fourth proportional to 145,078,216.40, 217,617,324.60 and 136,764,117.20 is: 205,146,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,078,216.40 : 217,617,324.60 = 136,764,117.20 : x
  2. Step 2: Convert to fraction form
    145,078,216.40/217,617,324.60 = 136,764,117.20/x
  3. Step 3: Cross multiply
    145,078,216.40x = 217,617,324.60 × 136,764,117.20
  4. Step 4: Simplify right side
    145,078,216.40x = 29,762,241,286,344,840
  5. Step 5: Solve for x
    x = 29,762,241,286,344,840/145,078,216.40
  6. Step 6: Final answer
    x = 205,146,175.80

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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.