Home / 124,429,621.60-186,317,840.40-87,840,431.20

Finding the Fourth Proportional to 124,429,621.60, 186,317,840.40 and 87,840,431.20

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Solution

The fourth proportional to 124,429,621.60, 186,317,840.40 and 87,840,431.20 is: 131,530,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,429,621.60 : 186,317,840.40 = 87,840,431.20 : x
  2. Step 2: Convert to fraction form
    124,429,621.60/186,317,840.40 = 87,840,431.20/x
  3. Step 3: Cross multiply
    124,429,621.60x = 186,317,840.40 × 87,840,431.20
  4. Step 4: Simplify right side
    124,429,621.60x = 16,366,239,440,988,782
  5. Step 5: Solve for x
    x = 16,366,239,440,988,782/124,429,621.60
  6. Step 6: Final answer
    x = 131,530,090.91

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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.