Home / 20,445,875,778.89-28,010,719,170.56-19,681,295,079.04

Finding the Fourth Proportional to 20,445,875,778.89, 28,010,719,170.56 and 19,681,295,079.04

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Solution

The fourth proportional to 20,445,875,778.89, 28,010,719,170.56 and 19,681,295,079.04 is: 26,963,248,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445,875,778.89 : 28,010,719,170.56 = 19,681,295,079.04 : x
  2. Step 2: Convert to fraction form
    20,445,875,778.89/28,010,719,170.56 = 19,681,295,079.04/x
  3. Step 3: Cross multiply
    20,445,875,778.89x = 28,010,719,170.56 × 19,681,295,079.04
  4. Step 4: Simplify right side
    20,445,875,778.89x = 551,287,229,371,969,961,984
  5. Step 5: Solve for x
    x = 551,287,229,371,969,961,984/20,445,875,778.89
  6. Step 6: Final answer
    x = 26,963,248,497.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.