Home / 309,577,869.09-427,204,565.50-168,449,643.72

Finding the Fourth Proportional to 309,577,869.09, 427,204,565.50 and 168,449,643.72

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Solution

The fourth proportional to 309,577,869.09, 427,204,565.50 and 168,449,643.72 is: 232,453,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,577,869.09 : 427,204,565.50 = 168,449,643.72 : x
  2. Step 2: Convert to fraction form
    309,577,869.09/427,204,565.50 = 168,449,643.72/x
  3. Step 3: Cross multiply
    309,577,869.09x = 427,204,565.50 × 168,449,643.72
  4. Step 4: Simplify right side
    309,577,869.09x = 71,962,456,854,032,400
  5. Step 5: Solve for x
    x = 71,962,456,854,032,400/309,577,869.09
  6. Step 6: Final answer
    x = 232,453,492.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.