Home / 808,262,585.70-1,212,393,878.55-726,473,815.80

Finding the Fourth Proportional to 808,262,585.70, 1,212,393,878.55 and 726,473,815.80

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Solution

The fourth proportional to 808,262,585.70, 1,212,393,878.55 and 726,473,815.80 is: 1,089,710,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,262,585.70 : 1,212,393,878.55 = 726,473,815.80 : x
  2. Step 2: Convert to fraction form
    808,262,585.70/1,212,393,878.55 = 726,473,815.80/x
  3. Step 3: Cross multiply
    808,262,585.70x = 1,212,393,878.55 × 726,473,815.80
  4. Step 4: Simplify right side
    808,262,585.70x = 880,772,407,202,780,160
  5. Step 5: Solve for x
    x = 880,772,407,202,780,160/808,262,585.70
  6. Step 6: Final answer
    x = 1,089,710,723.70

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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.