Home / 1,389,823,365.20-1,917,526,170.12-802,898,350.16

Finding the Fourth Proportional to 1,389,823,365.20, 1,917,526,170.12 and 802,898,350.16

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Solution

The fourth proportional to 1,389,823,365.20, 1,917,526,170.12 and 802,898,350.16 is: 1,107,751,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,823,365.20 : 1,917,526,170.12 = 802,898,350.16 : x
  2. Step 2: Convert to fraction form
    1,389,823,365.20/1,917,526,170.12 = 802,898,350.16/x
  3. Step 3: Cross multiply
    1,389,823,365.20x = 1,917,526,170.12 × 802,898,350.16
  4. Step 4: Simplify right side
    1,389,823,365.20x = 1,539,578,598,377,971,456
  5. Step 5: Solve for x
    x = 1,539,578,598,377,971,456/1,389,823,365.20
  6. Step 6: Final answer
    x = 1,107,751,270.36

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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.