Home / 28,807,894,999.63-39,755,365,761.18-15,771,860,182.09

Finding the Fourth Proportional to 28,807,894,999.63, 39,755,365,761.18 and 15,771,860,182.09

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Solution

The fourth proportional to 28,807,894,999.63, 39,755,365,761.18 and 15,771,860,182.09 is: 21,765,424,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807,894,999.63 : 39,755,365,761.18 = 15,771,860,182.09 : x
  2. Step 2: Convert to fraction form
    28,807,894,999.63/39,755,365,761.18 = 15,771,860,182.09/x
  3. Step 3: Cross multiply
    28,807,894,999.63x = 39,755,365,761.18 × 15,771,860,182.09
  4. Step 4: Simplify right side
    28,807,894,999.63x = 627,016,070,273,035,665,408
  5. Step 5: Solve for x
    x = 627,016,070,273,035,665,408/28,807,894,999.63
  6. Step 6: Final answer
    x = 21,765,424,731.01

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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.