Home / 578,688,321.20-868,128,126.60-268,106,327.60

Finding the Fourth Proportional to 578,688,321.20, 868,128,126.60 and 268,106,327.60

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Solution

The fourth proportional to 578,688,321.20, 868,128,126.60 and 268,106,327.60 is: 402,203,803.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,688,321.20 : 868,128,126.60 = 268,106,327.60 : x
  2. Step 2: Convert to fraction form
    578,688,321.20/868,128,126.60 = 268,106,327.60/x
  3. Step 3: Cross multiply
    578,688,321.20x = 868,128,126.60 × 268,106,327.60
  4. Step 4: Simplify right side
    578,688,321.20x = 232,750,643,908,993,888
  5. Step 5: Solve for x
    x = 232,750,643,908,993,888/578,688,321.20
  6. Step 6: Final answer
    x = 402,203,803.64

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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.