Home / 139,953,847.90-193,174,724.67-81,235,430.26

Finding the Fourth Proportional to 139,953,847.90, 193,174,724.67 and 81,235,430.26

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Solution

The fourth proportional to 139,953,847.90, 193,174,724.67 and 81,235,430.26 is: 112,127,191.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,953,847.90 : 193,174,724.67 = 81,235,430.26 : x
  2. Step 2: Convert to fraction form
    139,953,847.90/193,174,724.67 = 81,235,430.26/x
  3. Step 3: Cross multiply
    139,953,847.90x = 193,174,724.67 × 81,235,430.26
  4. Step 4: Simplify right side
    139,953,847.90x = 15,692,631,873,924,486
  5. Step 5: Solve for x
    x = 15,692,631,873,924,486/139,953,847.90
  6. Step 6: Final answer
    x = 112,127,191.28

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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.