Home / 138,364,883,972.92-190,938,422,577.90-74,998,750,171.96

Finding the Fourth Proportional to 138,364,883,972.92, 190,938,422,577.90 and 74,998,750,171.96

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Solution

The fourth proportional to 138,364,883,972.92, 190,938,422,577.90 and 74,998,750,171.96 is: 103,495,501,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,364,883,972.92 : 190,938,422,577.90 = 74,998,750,171.96 : x
  2. Step 2: Convert to fraction form
    138,364,883,972.92/190,938,422,577.90 = 74,998,750,171.96/x
  3. Step 3: Cross multiply
    138,364,883,972.92x = 190,938,422,577.90 × 74,998,750,171.96
  4. Step 4: Simplify right side
    138,364,883,972.92x = 14,320,143,053,148,049,637,376
  5. Step 5: Solve for x
    x = 14,320,143,053,148,049,637,376/138,364,883,972.92
  6. Step 6: Final answer
    x = 103,495,501,473.85

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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.