Home / 99,664,928.40-149,336,429.40-56,405,485.20

Finding the Fourth Proportional to 99,664,928.40, 149,336,429.40 and 56,405,485.20

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Solution

The fourth proportional to 99,664,928.40, 149,336,429.40 and 56,405,485.20 is: 84,517,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664,928.40 : 149,336,429.40 = 56,405,485.20 : x
  2. Step 2: Convert to fraction form
    99,664,928.40/149,336,429.40 = 56,405,485.20/x
  3. Step 3: Cross multiply
    99,664,928.40x = 149,336,429.40 × 56,405,485.20
  4. Step 4: Simplify right side
    99,664,928.40x = 8,423,393,758,342,546
  5. Step 5: Solve for x
    x = 8,423,393,758,342,546/99,664,928.40
  6. Step 6: Final answer
    x = 84,517,130.48

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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.