Home / 103,502,297.70-155,121,570.45-55,003,385.70

Finding the Fourth Proportional to 103,502,297.70, 155,121,570.45 and 55,003,385.70

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Solution

The fourth proportional to 103,502,297.70, 155,121,570.45 and 55,003,385.70 is: 82,434,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,502,297.70 : 155,121,570.45 = 55,003,385.70 : x
  2. Step 2: Convert to fraction form
    103,502,297.70/155,121,570.45 = 55,003,385.70/x
  3. Step 3: Cross multiply
    103,502,297.70x = 155,121,570.45 × 55,003,385.70
  4. Step 4: Simplify right side
    103,502,297.70x = 8,532,211,569,851,072
  5. Step 5: Solve for x
    x = 8,532,211,569,851,072/103,502,297.70
  6. Step 6: Final answer
    x = 82,434,996.70

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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.