Home / 146,706,051.60-220,059,077.40-78,681,603.60

Finding the Fourth Proportional to 146,706,051.60, 220,059,077.40 and 78,681,603.60

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Solution

The fourth proportional to 146,706,051.60, 220,059,077.40 and 78,681,603.60 is: 118,022,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,706,051.60 : 220,059,077.40 = 78,681,603.60 : x
  2. Step 2: Convert to fraction form
    146,706,051.60/220,059,077.40 = 78,681,603.60/x
  3. Step 3: Cross multiply
    146,706,051.60x = 220,059,077.40 × 78,681,603.60
  4. Step 4: Simplify right side
    146,706,051.60x = 17,314,601,096,568,518
  5. Step 5: Solve for x
    x = 17,314,601,096,568,518/146,706,051.60
  6. Step 6: Final answer
    x = 118,022,405.40

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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.