Home / 64,864,079.11-89,609,655.32-42,589,910.58

Finding the Fourth Proportional to 64,864,079.11, 89,609,655.32 and 42,589,910.58

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Solution

The fourth proportional to 64,864,079.11, 89,609,655.32 and 42,589,910.58 is: 58,837,915.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,864,079.11 : 89,609,655.32 = 42,589,910.58 : x
  2. Step 2: Convert to fraction form
    64,864,079.11/89,609,655.32 = 42,589,910.58/x
  3. Step 3: Cross multiply
    64,864,079.11x = 89,609,655.32 × 42,589,910.58
  4. Step 4: Simplify right side
    64,864,079.11x = 3,816,467,207,183,421
  5. Step 5: Solve for x
    x = 3,816,467,207,183,421/64,864,079.11
  6. Step 6: Final answer
    x = 58,837,915.52

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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.