Home / 840,501,398.57-1,261,517,160.69-447,358,286.45

Finding the Fourth Proportional to 840,501,398.57, 1,261,517,160.69 and 447,358,286.45

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Solution

The fourth proportional to 840,501,398.57, 1,261,517,160.69 and 447,358,286.45 is: 671,444,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,501,398.57 : 1,261,517,160.69 = 447,358,286.45 : x
  2. Step 2: Convert to fraction form
    840,501,398.57/1,261,517,160.69 = 447,358,286.45/x
  3. Step 3: Cross multiply
    840,501,398.57x = 1,261,517,160.69 × 447,358,286.45
  4. Step 4: Simplify right side
    840,501,398.57x = 564,350,155,336,701,504
  5. Step 5: Solve for x
    x = 564,350,155,336,701,504/840,501,398.57
  6. Step 6: Final answer
    x = 671,444,635.67

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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.