Home / 800,712,904.30-1,201,069,356.45-255,509,550.70

Finding the Fourth Proportional to 800,712,904.30, 1,201,069,356.45 and 255,509,550.70

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Solution

The fourth proportional to 800,712,904.30, 1,201,069,356.45 and 255,509,550.70 is: 383,264,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,712,904.30 : 1,201,069,356.45 = 255,509,550.70 : x
  2. Step 2: Convert to fraction form
    800,712,904.30/1,201,069,356.45 = 255,509,550.70/x
  3. Step 3: Cross multiply
    800,712,904.30x = 1,201,069,356.45 × 255,509,550.70
  4. Step 4: Simplify right side
    800,712,904.30x = 306,884,691,626,077,632
  5. Step 5: Solve for x
    x = 306,884,691,626,077,632/800,712,904.30
  6. Step 6: Final answer
    x = 383,264,326.05

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1.5x scale

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.