Home / 65,707,953.71-90,689,106.60-42,215,857.43

Finding the Fourth Proportional to 65,707,953.71, 90,689,106.60 and 42,215,857.43

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Solution

The fourth proportional to 65,707,953.71, 90,689,106.60 and 42,215,857.43 is: 58,265,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,707,953.71 : 90,689,106.60 = 42,215,857.43 : x
  2. Step 2: Convert to fraction form
    65,707,953.71/90,689,106.60 = 42,215,857.43/x
  3. Step 3: Cross multiply
    65,707,953.71x = 90,689,106.60 × 42,215,857.43
  4. Step 4: Simplify right side
    65,707,953.71x = 3,828,518,394,226,226
  5. Step 5: Solve for x
    x = 3,828,518,394,226,226/65,707,953.71
  6. Step 6: Final answer
    x = 58,265,676.81

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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.