Home / 138,366,697.85-190,948,312.80-82,616,989.44

Finding the Fourth Proportional to 138,366,697.85, 190,948,312.80 and 82,616,989.44

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Solution

The fourth proportional to 138,366,697.85, 190,948,312.80 and 82,616,989.44 is: 114,012,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,366,697.85 : 190,948,312.80 = 82,616,989.44 : x
  2. Step 2: Convert to fraction form
    138,366,697.85/190,948,312.80 = 82,616,989.44/x
  3. Step 3: Cross multiply
    138,366,697.85x = 190,948,312.80 × 82,616,989.44
  4. Step 4: Simplify right side
    138,366,697.85x = 15,775,574,742,183,418
  5. Step 5: Solve for x
    x = 15,775,574,742,183,418/138,366,697.85
  6. Step 6: Final answer
    x = 114,012,800.68

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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.