Home / 620,746,867.74-856,310,097.42-385,708,228.14

Finding the Fourth Proportional to 620,746,867.74, 856,310,097.42 and 385,708,228.14

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Solution

The fourth proportional to 620,746,867.74, 856,310,097.42 and 385,708,228.14 is: 532,078,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,746,867.74 : 856,310,097.42 = 385,708,228.14 : x
  2. Step 2: Convert to fraction form
    620,746,867.74/856,310,097.42 = 385,708,228.14/x
  3. Step 3: Cross multiply
    620,746,867.74x = 856,310,097.42 × 385,708,228.14
  4. Step 4: Simplify right side
    620,746,867.74x = 330,285,850,414,258,944
  5. Step 5: Solve for x
    x = 330,285,850,414,258,944/620,746,867.74
  6. Step 6: Final answer
    x = 532,078,158.71

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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.