Home / 82,800,164.40-114,186,721.86-65,437,987.20

Finding the Fourth Proportional to 82,800,164.40, 114,186,721.86 and 65,437,987.20

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Solution

The fourth proportional to 82,800,164.40, 114,186,721.86 and 65,437,987.20 is: 90,243,169.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800,164.40 : 114,186,721.86 = 65,437,987.20 : x
  2. Step 2: Convert to fraction form
    82,800,164.40/114,186,721.86 = 65,437,987.20/x
  3. Step 3: Cross multiply
    82,800,164.40x = 114,186,721.86 × 65,437,987.20
  4. Step 4: Simplify right side
    82,800,164.40x = 7,472,149,243,484,640
  5. Step 5: Solve for x
    x = 7,472,149,243,484,640/82,800,164.40
  6. Step 6: Final answer
    x = 90,243,169.17

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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.