Home / 625,341,730.25-938,012,624.54-428,410,953.29

Finding the Fourth Proportional to 625,341,730.25, 938,012,624.54 and 428,410,953.29

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Solution

The fourth proportional to 625,341,730.25, 938,012,624.54 and 428,410,953.29 is: 642,616,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,341,730.25 : 938,012,624.54 = 428,410,953.29 : x
  2. Step 2: Convert to fraction form
    625,341,730.25/938,012,624.54 = 428,410,953.29/x
  3. Step 3: Cross multiply
    625,341,730.25x = 938,012,624.54 × 428,410,953.29
  4. Step 4: Simplify right side
    625,341,730.25x = 401,854,882,677,236,224
  5. Step 5: Solve for x
    x = 401,854,882,677,236,224/625,341,730.25
  6. Step 6: Final answer
    x = 642,616,449.92

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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.