Home / 129,533,535.60-178,632,612.36-84,812,773.20

Finding the Fourth Proportional to 129,533,535.60, 178,632,612.36 and 84,812,773.20

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Solution

The fourth proportional to 129,533,535.60, 178,632,612.36 and 84,812,773.20 is: 116,960,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,533,535.60 : 178,632,612.36 = 84,812,773.20 : x
  2. Step 2: Convert to fraction form
    129,533,535.60/178,632,612.36 = 84,812,773.20/x
  3. Step 3: Cross multiply
    129,533,535.60x = 178,632,612.36 × 84,812,773.20
  4. Step 4: Simplify right side
    129,533,535.60x = 15,150,327,238,212,198
  5. Step 5: Solve for x
    x = 15,150,327,238,212,198/129,533,535.60
  6. Step 6: Final answer
    x = 116,960,655.54

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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.