Home / 130,520,718,766.58-180,118,600,559.43-72,647,856,602.82

Finding the Fourth Proportional to 130,520,718,766.58, 180,118,600,559.43 and 72,647,856,602.82

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Solution

The fourth proportional to 130,520,718,766.58, 180,118,600,559.43 and 72,647,856,602.82 is: 100,254,046,932.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,520,718,766.58 : 180,118,600,559.43 = 72,647,856,602.82 : x
  2. Step 2: Convert to fraction form
    130,520,718,766.58/180,118,600,559.43 = 72,647,856,602.82/x
  3. Step 3: Cross multiply
    130,520,718,766.58x = 180,118,600,559.43 × 72,647,856,602.82
  4. Step 4: Simplify right side
    130,520,718,766.58x = 13,085,230,264,942,086,586,368
  5. Step 5: Solve for x
    x = 13,085,230,264,942,086,586,368/130,520,718,766.58
  6. Step 6: Final answer
    x = 100,254,046,932.91

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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.