Home / 131,931,893.88-182,068,420.77-72,396,261.36

Finding the Fourth Proportional to 131,931,893.88, 182,068,420.77 and 72,396,261.36

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Solution

The fourth proportional to 131,931,893.88, 182,068,420.77 and 72,396,261.36 is: 99,908,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,931,893.88 : 182,068,420.77 = 72,396,261.36 : x
  2. Step 2: Convert to fraction form
    131,931,893.88/182,068,420.77 = 72,396,261.36/x
  3. Step 3: Cross multiply
    131,931,893.88x = 182,068,420.77 × 72,396,261.36
  4. Step 4: Simplify right side
    131,931,893.88x = 13,181,072,975,467,374
  5. Step 5: Solve for x
    x = 13,181,072,975,467,374/131,931,893.88
  6. Step 6: Final answer
    x = 99,908,161.61

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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.