Home / 392,688,086.40-589,032,129.60-174,254,025.60

Finding the Fourth Proportional to 392,688,086.40, 589,032,129.60 and 174,254,025.60

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Solution

The fourth proportional to 392,688,086.40, 589,032,129.60 and 174,254,025.60 is: 261,381,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,688,086.40 : 589,032,129.60 = 174,254,025.60 : x
  2. Step 2: Convert to fraction form
    392,688,086.40/589,032,129.60 = 174,254,025.60/x
  3. Step 3: Cross multiply
    392,688,086.40x = 589,032,129.60 × 174,254,025.60
  4. Step 4: Simplify right side
    392,688,086.40x = 102,641,219,790,540,912
  5. Step 5: Solve for x
    x = 102,641,219,790,540,912/392,688,086.40
  6. Step 6: Final answer
    x = 261,381,038.40

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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.