Home / 1,292,643,767.80-1,939,529,077.62-452,888,944.72

Finding the Fourth Proportional to 1,292,643,767.80, 1,939,529,077.62 and 452,888,944.72

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Solution

The fourth proportional to 1,292,643,767.80, 1,939,529,077.62 and 452,888,944.72 is: 679,530,818.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,643,767.80 : 1,939,529,077.62 = 452,888,944.72 : x
  2. Step 2: Convert to fraction form
    1,292,643,767.80/1,939,529,077.62 = 452,888,944.72/x
  3. Step 3: Cross multiply
    1,292,643,767.80x = 1,939,529,077.62 × 452,888,944.72
  4. Step 4: Simplify right side
    1,292,643,767.80x = 878,391,277,217,076,736
  5. Step 5: Solve for x
    x = 878,391,277,217,076,736/1,292,643,767.80
  6. Step 6: Final answer
    x = 679,530,818.23

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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.