Home / 440,347,617.60-660,521,426.40-133,639,238.40

Finding the Fourth Proportional to 440,347,617.60, 660,521,426.40 and 133,639,238.40

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Solution

The fourth proportional to 440,347,617.60, 660,521,426.40 and 133,639,238.40 is: 200,458,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,347,617.60 : 660,521,426.40 = 133,639,238.40 : x
  2. Step 2: Convert to fraction form
    440,347,617.60/660,521,426.40 = 133,639,238.40/x
  3. Step 3: Cross multiply
    440,347,617.60x = 660,521,426.40 × 133,639,238.40
  4. Step 4: Simplify right side
    440,347,617.60x = 88,271,580,370,977,648
  5. Step 5: Solve for x
    x = 88,271,580,370,977,648/440,347,617.60
  6. Step 6: Final answer
    x = 200,458,857.60

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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.