Home / 28,655,073,735.60-42,941,795,934.60-21,134,971,009.20

Finding the Fourth Proportional to 28,655,073,735.60, 42,941,795,934.60 and 21,134,971,009.20

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Solution

The fourth proportional to 28,655,073,735.60, 42,941,795,934.60 and 21,134,971,009.20 is: 31,672,353,054.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655,073,735.60 : 42,941,795,934.60 = 21,134,971,009.20 : x
  2. Step 2: Convert to fraction form
    28,655,073,735.60/42,941,795,934.60 = 21,134,971,009.20/x
  3. Step 3: Cross multiply
    28,655,073,735.60x = 42,941,795,934.60 × 21,134,971,009.20
  4. Step 4: Simplify right side
    28,655,073,735.60x = 907,573,612,160,753,467,392
  5. Step 5: Solve for x
    x = 907,573,612,160,753,467,392/28,655,073,735.60
  6. Step 6: Final answer
    x = 31,672,353,054.64

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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.