Home / 130,520,718,773.80-180,118,600,569.42-72,647,856,610.05

Finding the Fourth Proportional to 130,520,718,773.80, 180,118,600,569.42 and 72,647,856,610.05

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Solution

The fourth proportional to 130,520,718,773.80, 180,118,600,569.42 and 72,647,856,610.05 is: 100,254,046,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,520,718,773.80 : 180,118,600,569.42 = 72,647,856,610.05 : x
  2. Step 2: Convert to fraction form
    130,520,718,773.80/180,118,600,569.42 = 72,647,856,610.05/x
  3. Step 3: Cross multiply
    130,520,718,773.80x = 180,118,600,569.42 × 72,647,856,610.05
  4. Step 4: Simplify right side
    130,520,718,773.80x = 13,085,230,266,970,634,452,992
  5. Step 5: Solve for x
    x = 13,085,230,266,970,634,452,992/130,520,718,773.80
  6. Step 6: Final answer
    x = 100,254,046,942.91

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1.5x scale

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.