Home / 81,867,461.70-122,865,368.85-57,114,417.36

Finding the Fourth Proportional to 81,867,461.70, 122,865,368.85 and 57,114,417.36

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Solution

The fourth proportional to 81,867,461.70, 122,865,368.85 and 57,114,417.36 is: 85,716,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,867,461.70 : 122,865,368.85 = 57,114,417.36 : x
  2. Step 2: Convert to fraction form
    81,867,461.70/122,865,368.85 = 57,114,417.36/x
  3. Step 3: Cross multiply
    81,867,461.70x = 122,865,368.85 × 57,114,417.36
  4. Step 4: Simplify right side
    81,867,461.70x = 7,017,383,955,589,243
  5. Step 5: Solve for x
    x = 7,017,383,955,589,243/81,867,461.70
  6. Step 6: Final answer
    x = 85,716,398.31

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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.