Home / 873,234,806.40-1,309,852,209.60-838,797,429.60

Finding the Fourth Proportional to 873,234,806.40, 1,309,852,209.60 and 838,797,429.60

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Solution

The fourth proportional to 873,234,806.40, 1,309,852,209.60 and 838,797,429.60 is: 1,258,196,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,234,806.40 : 1,309,852,209.60 = 838,797,429.60 : x
  2. Step 2: Convert to fraction form
    873,234,806.40/1,309,852,209.60 = 838,797,429.60/x
  3. Step 3: Cross multiply
    873,234,806.40x = 1,309,852,209.60 × 838,797,429.60
  4. Step 4: Simplify right side
    873,234,806.40x = 1,098,700,666,568,360,448
  5. Step 5: Solve for x
    x = 1,098,700,666,568,360,448/873,234,806.40
  6. Step 6: Final answer
    x = 1,258,196,144.40

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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.