Home / 161,696,919.40-242,555,876.70-85,169,415.40

Finding the Fourth Proportional to 161,696,919.40, 242,555,876.70 and 85,169,415.40

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Solution

The fourth proportional to 161,696,919.40, 242,555,876.70 and 85,169,415.40 is: 127,759,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,696,919.40 : 242,555,876.70 = 85,169,415.40 : x
  2. Step 2: Convert to fraction form
    161,696,919.40/242,555,876.70 = 85,169,415.40/x
  3. Step 3: Cross multiply
    161,696,919.40x = 242,555,876.70 × 85,169,415.40
  4. Step 4: Simplify right side
    161,696,919.40x = 20,658,342,220,373,480
  5. Step 5: Solve for x
    x = 20,658,342,220,373,480/161,696,919.40
  6. Step 6: Final answer
    x = 127,759,652.42

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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.