Home / 100,896,971.48-139,237,818.17-54,487,221.60

Finding the Fourth Proportional to 100,896,971.48, 139,237,818.17 and 54,487,221.60

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Solution

The fourth proportional to 100,896,971.48, 139,237,818.17 and 54,487,221.60 is: 75,192,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,896,971.48 : 139,237,818.17 = 54,487,221.60 : x
  2. Step 2: Convert to fraction form
    100,896,971.48/139,237,818.17 = 54,487,221.60/x
  3. Step 3: Cross multiply
    100,896,971.48x = 139,237,818.17 × 54,487,221.60
  4. Step 4: Simplify right side
    100,896,971.48x = 7,586,681,853,729,296
  5. Step 5: Solve for x
    x = 7,586,681,853,729,296/100,896,971.48
  6. Step 6: Final answer
    x = 75,192,364.47

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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.