Home / 67,143,818.04-100,715,721.53-18,621,671.06

Finding the Fourth Proportional to 67,143,818.04, 100,715,721.53 and 18,621,671.06

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Solution

The fourth proportional to 67,143,818.04, 100,715,721.53 and 18,621,671.06 is: 27,932,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143,818.04 : 100,715,721.53 = 18,621,671.06 : x
  2. Step 2: Convert to fraction form
    67,143,818.04/100,715,721.53 = 18,621,671.06/x
  3. Step 3: Cross multiply
    67,143,818.04x = 100,715,721.53 × 18,621,671.06
  4. Step 4: Simplify right side
    67,143,818.04x = 1,875,495,036,305,533
  5. Step 5: Solve for x
    x = 1,875,495,036,305,533/67,143,818.04
  6. Step 6: Final answer
    x = 27,932,505.05

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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.