Home / 998,783,999.60-1,498,175,999.40-817,236,172.40

Finding the Fourth Proportional to 998,783,999.60, 1,498,175,999.40 and 817,236,172.40

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Solution

The fourth proportional to 998,783,999.60, 1,498,175,999.40 and 817,236,172.40 is: 1,225,854,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,783,999.60 : 1,498,175,999.40 = 817,236,172.40 : x
  2. Step 2: Convert to fraction form
    998,783,999.60/1,498,175,999.40 = 817,236,172.40/x
  3. Step 3: Cross multiply
    998,783,999.60x = 1,498,175,999.40 × 817,236,172.40
  4. Step 4: Simplify right side
    998,783,999.60x = 1,224,363,619,331,200,768
  5. Step 5: Solve for x
    x = 1,224,363,619,331,200,768/998,783,999.60
  6. Step 6: Final answer
    x = 1,225,854,258.60

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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.