Home / 140,091,332.72-193,343,871.96-81,342,301.64

Finding the Fourth Proportional to 140,091,332.72, 193,343,871.96 and 81,342,301.64

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Solution

The fourth proportional to 140,091,332.72, 193,343,871.96 and 81,342,301.64 is: 112,262,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,091,332.72 : 193,343,871.96 = 81,342,301.64 : x
  2. Step 2: Convert to fraction form
    140,091,332.72/193,343,871.96 = 81,342,301.64/x
  3. Step 3: Cross multiply
    140,091,332.72x = 193,343,871.96 × 81,342,301.64
  4. Step 4: Simplify right side
    140,091,332.72x = 15,727,035,553,215,858
  5. Step 5: Solve for x
    x = 15,727,035,553,215,858/140,091,332.72
  6. Step 6: Final answer
    x = 112,262,730.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.