Home / 66,052,721.68-91,141,810.56-38,178,032.32

Finding the Fourth Proportional to 66,052,721.68, 91,141,810.56 and 38,178,032.32

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Solution

The fourth proportional to 66,052,721.68, 91,141,810.56 and 38,178,032.32 is: 52,679,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,052,721.68 : 91,141,810.56 = 38,178,032.32 : x
  2. Step 2: Convert to fraction form
    66,052,721.68/91,141,810.56 = 38,178,032.32/x
  3. Step 3: Cross multiply
    66,052,721.68x = 91,141,810.56 × 38,178,032.32
  4. Step 4: Simplify right side
    66,052,721.68x = 3,479,614,989,262,997.50
  5. Step 5: Solve for x
    x = 3,479,614,989,262,997.50/66,052,721.68
  6. Step 6: Final answer
    x = 52,679,358.26

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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.