Home / 109,919,643.20-164,879,464.80-56,171,931.20

Finding the Fourth Proportional to 109,919,643.20, 164,879,464.80 and 56,171,931.20

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Solution

The fourth proportional to 109,919,643.20, 164,879,464.80 and 56,171,931.20 is: 84,257,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,919,643.20 : 164,879,464.80 = 56,171,931.20 : x
  2. Step 2: Convert to fraction form
    109,919,643.20/164,879,464.80 = 56,171,931.20/x
  3. Step 3: Cross multiply
    109,919,643.20x = 164,879,464.80 × 56,171,931.20
  4. Step 4: Simplify right side
    109,919,643.20x = 9,261,597,953,038,422
  5. Step 5: Solve for x
    x = 9,261,597,953,038,422/109,919,643.20
  6. Step 6: Final answer
    x = 84,257,896.80

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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.