Home / 85,761,138.29-128,569,381.52-37,202,411.84

Finding the Fourth Proportional to 85,761,138.29, 128,569,381.52 and 37,202,411.84

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Solution

The fourth proportional to 85,761,138.29, 128,569,381.52 and 37,202,411.84 is: 55,772,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,761,138.29 : 128,569,381.52 = 37,202,411.84 : x
  2. Step 2: Convert to fraction form
    85,761,138.29/128,569,381.52 = 37,202,411.84/x
  3. Step 3: Cross multiply
    85,761,138.29x = 128,569,381.52 × 37,202,411.84
  4. Step 4: Simplify right side
    85,761,138.29x = 4,783,091,080,492,266
  5. Step 5: Solve for x
    x = 4,783,091,080,492,266/85,761,138.29
  6. Step 6: Final answer
    x = 55,772,243.42

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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.