Home / 852,119,746.30-1,278,179,619.45-489,322,690.30

Finding the Fourth Proportional to 852,119,746.30, 1,278,179,619.45 and 489,322,690.30

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Solution

The fourth proportional to 852,119,746.30, 1,278,179,619.45 and 489,322,690.30 is: 733,984,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,119,746.30 : 1,278,179,619.45 = 489,322,690.30 : x
  2. Step 2: Convert to fraction form
    852,119,746.30/1,278,179,619.45 = 489,322,690.30/x
  3. Step 3: Cross multiply
    852,119,746.30x = 1,278,179,619.45 × 489,322,690.30
  4. Step 4: Simplify right side
    852,119,746.30x = 625,442,290,075,904,256
  5. Step 5: Solve for x
    x = 625,442,290,075,904,256/852,119,746.30
  6. Step 6: Final answer
    x = 733,984,035.45

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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.