Home / 66,274,022.31-99,426,681.45-20,835,816.81

Finding the Fourth Proportional to 66,274,022.31, 99,426,681.45 and 20,835,816.81

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Solution

The fourth proportional to 66,274,022.31, 99,426,681.45 and 20,835,816.81 is: 31,258,644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274,022.31 : 99,426,681.45 = 20,835,816.81 : x
  2. Step 2: Convert to fraction form
    66,274,022.31/99,426,681.45 = 20,835,816.81/x
  3. Step 3: Cross multiply
    66,274,022.31x = 99,426,681.45 × 20,835,816.81
  4. Step 4: Simplify right side
    66,274,022.31x = 2,071,636,120,718,425
  5. Step 5: Solve for x
    x = 2,071,636,120,718,425/66,274,022.31
  6. Step 6: Final answer
    x = 31,258,644.77

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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.