Home / 1,286,951,270,294.50-1,775,927,115,498-708,875,344,809.72

Finding the Fourth Proportional to 1,286,951,270,294.50, 1,775,927,115,498 and 708,875,344,809.72

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Solution

The fourth proportional to 1,286,951,270,294.50, 1,775,927,115,498 and 708,875,344,809.72 is: 978,211,821,545.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,951,270,294.50 : 1,775,927,115,498 = 708,875,344,809.72 : x
  2. Step 2: Convert to fraction form
    1,286,951,270,294.50/1,775,927,115,498 = 708,875,344,809.72/x
  3. Step 3: Cross multiply
    1,286,951,270,294.50x = 1,775,927,115,498 × 708,875,344,809.72
  4. Step 4: Simplify right side
    1,286,951,270,294.50x = 1,258,910,946,355,576,160,911,360
  5. Step 5: Solve for x
    x = 1,258,910,946,355,576,160,911,360/1,286,951,270,294.50
  6. Step 6: Final answer
    x = 978,211,821,545.89

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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.