Home / 72,166,822,157.30-108,254,370,033.72-19,106,476,511.53

Finding the Fourth Proportional to 72,166,822,157.30, 108,254,370,033.72 and 19,106,476,511.53

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Solution

The fourth proportional to 72,166,822,157.30, 108,254,370,033.72 and 19,106,476,511.53 is: 28,660,810,002.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,166,822,157.30 : 108,254,370,033.72 = 19,106,476,511.53 : x
  2. Step 2: Convert to fraction form
    72,166,822,157.30/108,254,370,033.72 = 19,106,476,511.53/x
  3. Step 3: Cross multiply
    72,166,822,157.30x = 108,254,370,033.72 × 19,106,476,511.53
  4. Step 4: Simplify right side
    72,166,822,157.30x = 2,068,359,578,320,181,395,456
  5. Step 5: Solve for x
    x = 2,068,359,578,320,181,395,456/72,166,822,157.30
  6. Step 6: Final answer
    x = 28,660,810,002.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.