Home / 65,778,688.82-90,753,722.24-38,271,302.66

Finding the Fourth Proportional to 65,778,688.82, 90,753,722.24 and 38,271,302.66

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Solution

The fourth proportional to 65,778,688.82, 90,753,722.24 and 38,271,302.66 is: 52,802,256.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,778,688.82 : 90,753,722.24 = 38,271,302.66 : x
  2. Step 2: Convert to fraction form
    65,778,688.82/90,753,722.24 = 38,271,302.66/x
  3. Step 3: Cross multiply
    65,778,688.82x = 90,753,722.24 × 38,271,302.66
  4. Step 4: Simplify right side
    65,778,688.82x = 3,473,263,171,368,612.50
  5. Step 5: Solve for x
    x = 3,473,263,171,368,612.50/65,778,688.82
  6. Step 6: Final answer
    x = 52,802,256.08

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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.