Home / 1,987,426,407.31-2,742,612,860.14-1,083,190,486.27

Finding the Fourth Proportional to 1,987,426,407.31, 2,742,612,860.14 and 1,083,190,486.27

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Solution

The fourth proportional to 1,987,426,407.31, 2,742,612,860.14 and 1,083,190,486.27 is: 1,494,783,478.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,426,407.31 : 2,742,612,860.14 = 1,083,190,486.27 : x
  2. Step 2: Convert to fraction form
    1,987,426,407.31/2,742,612,860.14 = 1,083,190,486.27/x
  3. Step 3: Cross multiply
    1,987,426,407.31x = 2,742,612,860.14 × 1,083,190,486.27
  4. Step 4: Simplify right side
    1,987,426,407.31x = 2,970,772,157,625,401,856
  5. Step 5: Solve for x
    x = 2,970,772,157,625,401,856/1,987,426,407.31
  6. Step 6: Final answer
    x = 1,494,783,478.12

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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.