Home / 81,688,161.60-122,364,280.80-56,157,998.40

Finding the Fourth Proportional to 81,688,161.60, 122,364,280.80 and 56,157,998.40

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Solution

The fourth proportional to 81,688,161.60, 122,364,280.80 and 56,157,998.40 is: 84,121,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,688,161.60 : 122,364,280.80 = 56,157,998.40 : x
  2. Step 2: Convert to fraction form
    81,688,161.60/122,364,280.80 = 56,157,998.40/x
  3. Step 3: Cross multiply
    81,688,161.60x = 122,364,280.80 × 56,157,998.40
  4. Step 4: Simplify right side
    81,688,161.60x = 6,871,733,085,383,550
  5. Step 5: Solve for x
    x = 6,871,733,085,383,550/81,688,161.60
  6. Step 6: Final answer
    x = 84,121,529.37

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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.