Home / 1,311,056,637.40-1,966,584,956.10-897,808,115.80

Finding the Fourth Proportional to 1,311,056,637.40, 1,966,584,956.10 and 897,808,115.80

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Solution

The fourth proportional to 1,311,056,637.40, 1,966,584,956.10 and 897,808,115.80 is: 1,346,712,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,056,637.40 : 1,966,584,956.10 = 897,808,115.80 : x
  2. Step 2: Convert to fraction form
    1,311,056,637.40/1,966,584,956.10 = 897,808,115.80/x
  3. Step 3: Cross multiply
    1,311,056,637.40x = 1,966,584,956.10 × 897,808,115.80
  4. Step 4: Simplify right side
    1,311,056,637.40x = 1,765,615,933,996,766,464
  5. Step 5: Solve for x
    x = 1,765,615,933,996,766,464/1,311,056,637.40
  6. Step 6: Final answer
    x = 1,346,712,173.70

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Double scale
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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.