Home / 138,366,697.60-190,948,312.46-82,616,989.20

Finding the Fourth Proportional to 138,366,697.60, 190,948,312.46 and 82,616,989.20

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Solution

The fourth proportional to 138,366,697.60, 190,948,312.46 and 82,616,989.20 is: 114,012,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,366,697.60 : 190,948,312.46 = 82,616,989.20 : x
  2. Step 2: Convert to fraction form
    138,366,697.60/190,948,312.46 = 82,616,989.20/x
  3. Step 3: Cross multiply
    138,366,697.60x = 190,948,312.46 × 82,616,989.20
  4. Step 4: Simplify right side
    138,366,697.60x = 15,775,574,668,266,046
  5. Step 5: Solve for x
    x = 15,775,574,668,266,046/138,366,697.60
  6. Step 6: Final answer
    x = 114,012,800.35

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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.