Home / 578,688,325.20-868,128,132.60-268,106,331.60

Finding the Fourth Proportional to 578,688,325.20, 868,128,132.60 and 268,106,331.60

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Solution

The fourth proportional to 578,688,325.20, 868,128,132.60 and 268,106,331.60 is: 402,203,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,688,325.20 : 868,128,132.60 = 268,106,331.60 : x
  2. Step 2: Convert to fraction form
    578,688,325.20/868,128,132.60 = 268,106,331.60/x
  3. Step 3: Cross multiply
    578,688,325.20x = 868,128,132.60 × 268,106,331.60
  4. Step 4: Simplify right side
    578,688,325.20x = 232,750,648,990,144,384
  5. Step 5: Solve for x
    x = 232,750,648,990,144,384/578,688,325.20
  6. Step 6: Final answer
    x = 402,203,809.64

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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.