Home / 1,248,230,937.60-1,868,763,225.60-1,212,399,129.60

Finding the Fourth Proportional to 1,248,230,937.60, 1,868,763,225.60 and 1,212,399,129.60

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Solution

The fourth proportional to 1,248,230,937.60, 1,868,763,225.60 and 1,212,399,129.60 is: 1,815,118,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,230,937.60 : 1,868,763,225.60 = 1,212,399,129.60 : x
  2. Step 2: Convert to fraction form
    1,248,230,937.60/1,868,763,225.60 = 1,212,399,129.60/x
  3. Step 3: Cross multiply
    1,248,230,937.60x = 1,868,763,225.60 × 1,212,399,129.60
  4. Step 4: Simplify right side
    1,248,230,937.60x = 2,265,686,908,145,928,192
  5. Step 5: Solve for x
    x = 2,265,686,908,145,928,192/1,248,230,937.60
  6. Step 6: Final answer
    x = 1,815,118,372.65

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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.