Home / 28,881,401,582.76-39,841,665,845.04-18,862,760,881.32

Finding the Fourth Proportional to 28,881,401,582.76, 39,841,665,845.04 and 18,862,760,881.32

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Solution

The fourth proportional to 28,881,401,582.76, 39,841,665,845.04 and 18,862,760,881.32 is: 26,021,029,962.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881,401,582.76 : 39,841,665,845.04 = 18,862,760,881.32 : x
  2. Step 2: Convert to fraction form
    28,881,401,582.76/39,841,665,845.04 = 18,862,760,881.32/x
  3. Step 3: Cross multiply
    28,881,401,582.76x = 39,841,665,845.04 × 18,862,760,881.32
  4. Step 4: Simplify right side
    28,881,401,582.76x = 751,523,815,948,443,713,536
  5. Step 5: Solve for x
    x = 751,523,815,948,443,713,536/28,881,401,582.76
  6. Step 6: Final answer
    x = 26,021,029,962.65

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Double scale
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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.