Home / 750,619,311.65-1,035,863,076.19-428,789,900.32

Finding the Fourth Proportional to 750,619,311.65, 1,035,863,076.19 and 428,789,900.32

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Solution

The fourth proportional to 750,619,311.65, 1,035,863,076.19 and 428,789,900.32 is: 591,734,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,619,311.65 : 1,035,863,076.19 = 428,789,900.32 : x
  2. Step 2: Convert to fraction form
    750,619,311.65/1,035,863,076.19 = 428,789,900.32/x
  3. Step 3: Cross multiply
    750,619,311.65x = 1,035,863,076.19 × 428,789,900.32
  4. Step 4: Simplify right side
    750,619,311.65x = 444,167,625,187,663,616
  5. Step 5: Solve for x
    x = 444,167,625,187,663,616/750,619,311.65
  6. Step 6: Final answer
    x = 591,734,875.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.