Home / 42,007,908.70-62,986,979.85-21,852,516.70

Finding the Fourth Proportional to 42,007,908.70, 62,986,979.85 and 21,852,516.70

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Solution

The fourth proportional to 42,007,908.70, 62,986,979.85 and 21,852,516.70 is: 32,765,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,007,908.70 : 62,986,979.85 = 21,852,516.70 : x
  2. Step 2: Convert to fraction form
    42,007,908.70/62,986,979.85 = 21,852,516.70/x
  3. Step 3: Cross multiply
    42,007,908.70x = 62,986,979.85 × 21,852,516.70
  4. Step 4: Simplify right side
    42,007,908.70x = 1,376,424,029,054,688.50
  5. Step 5: Solve for x
    x = 1,376,424,029,054,688.50/42,007,908.70
  6. Step 6: Final answer
    x = 32,765,830.81

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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.