Home / 83,683,559.60-115,372,370.72-68,742,761.12

Finding the Fourth Proportional to 83,683,559.60, 115,372,370.72 and 68,742,761.12

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Solution

The fourth proportional to 83,683,559.60, 115,372,370.72 and 68,742,761.12 is: 94,773,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,683,559.60 : 115,372,370.72 = 68,742,761.12 : x
  2. Step 2: Convert to fraction form
    83,683,559.60/115,372,370.72 = 68,742,761.12/x
  3. Step 3: Cross multiply
    83,683,559.60x = 115,372,370.72 × 68,742,761.12
  4. Step 4: Simplify right side
    83,683,559.60x = 7,931,015,320,253,043
  5. Step 5: Solve for x
    x = 7,931,015,320,253,043/83,683,559.60
  6. Step 6: Final answer
    x = 94,773,876.23

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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.