Home / 130,520,718,765.57-180,118,600,558.05-72,647,856,601.82

Finding the Fourth Proportional to 130,520,718,765.57, 180,118,600,558.05 and 72,647,856,601.82

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Solution

The fourth proportional to 130,520,718,765.57, 180,118,600,558.05 and 72,647,856,601.82 is: 100,254,046,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,520,718,765.57 : 180,118,600,558.05 = 72,647,856,601.82 : x
  2. Step 2: Convert to fraction form
    130,520,718,765.57/180,118,600,558.05 = 72,647,856,601.82/x
  3. Step 3: Cross multiply
    130,520,718,765.57x = 180,118,600,558.05 × 72,647,856,601.82
  4. Step 4: Simplify right side
    130,520,718,765.57x = 13,085,230,264,661,712,044,032
  5. Step 5: Solve for x
    x = 13,085,230,264,661,712,044,032/130,520,718,765.57
  6. Step 6: Final answer
    x = 100,254,046,931.54

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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.