Home / 668,861,041.90-1,004,047,390.05-396,385,336.30

Finding the Fourth Proportional to 668,861,041.90, 1,004,047,390.05 and 396,385,336.30

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Solution

The fourth proportional to 668,861,041.90, 1,004,047,390.05 and 396,385,336.30 is: 595,025,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,861,041.90 : 1,004,047,390.05 = 396,385,336.30 : x
  2. Step 2: Convert to fraction form
    668,861,041.90/1,004,047,390.05 = 396,385,336.30/x
  3. Step 3: Cross multiply
    668,861,041.90x = 1,004,047,390.05 × 396,385,336.30
  4. Step 4: Simplify right side
    668,861,041.90x = 397,989,662,366,106,496
  5. Step 5: Solve for x
    x = 397,989,662,366,106,496/668,861,041.90
  6. Step 6: Final answer
    x = 595,025,928.31

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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.