Home / 100,076,876.68-138,105,034.26-56,024,237.32

Finding the Fourth Proportional to 100,076,876.68, 138,105,034.26 and 56,024,237.32

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Solution

The fourth proportional to 100,076,876.68, 138,105,034.26 and 56,024,237.32 is: 77,312,856.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,076,876.68 : 138,105,034.26 = 56,024,237.32 : x
  2. Step 2: Convert to fraction form
    100,076,876.68/138,105,034.26 = 56,024,237.32/x
  3. Step 3: Cross multiply
    100,076,876.68x = 138,105,034.26 × 56,024,237.32
  4. Step 4: Simplify right side
    100,076,876.68x = 7,737,229,214,468,970
  5. Step 5: Solve for x
    x = 7,737,229,214,468,970/100,076,876.68
  6. Step 6: Final answer
    x = 77,312,856.59

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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.