Home / 120,292,406.63-165,975,069.21-68,081,442.28

Finding the Fourth Proportional to 120,292,406.63, 165,975,069.21 and 68,081,442.28

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Solution

The fourth proportional to 120,292,406.63, 165,975,069.21 and 68,081,442.28 is: 93,936,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292,406.63 : 165,975,069.21 = 68,081,442.28 : x
  2. Step 2: Convert to fraction form
    120,292,406.63/165,975,069.21 = 68,081,442.28/x
  3. Step 3: Cross multiply
    120,292,406.63x = 165,975,069.21 × 68,081,442.28
  4. Step 4: Simplify right side
    120,292,406.63x = 11,299,822,093,509,746
  5. Step 5: Solve for x
    x = 11,299,822,093,509,746/120,292,406.63
  6. Step 6: Final answer
    x = 93,936,287.50

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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.