Home / 161,747,965.98-242,837,186.88-85,124,802.60

Finding the Fourth Proportional to 161,747,965.98, 242,837,186.88 and 85,124,802.60

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Solution

The fourth proportional to 161,747,965.98, 242,837,186.88 and 85,124,802.60 is: 127,800,479.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,747,965.98 : 242,837,186.88 = 85,124,802.60 : x
  2. Step 2: Convert to fraction form
    161,747,965.98/242,837,186.88 = 85,124,802.60/x
  3. Step 3: Cross multiply
    161,747,965.98x = 242,837,186.88 × 85,124,802.60
  4. Step 4: Simplify right side
    161,747,965.98x = 20,671,467,597,099,308
  5. Step 5: Solve for x
    x = 20,671,467,597,099,308/161,747,965.98
  6. Step 6: Final answer
    x = 127,800,479.42

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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.