Home / 1,692,778,644.75-2,335,822,999.47-939,989,468.42

Finding the Fourth Proportional to 1,692,778,644.75, 2,335,822,999.47 and 939,989,468.42

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Solution

The fourth proportional to 1,692,778,644.75, 2,335,822,999.47 and 939,989,468.42 is: 1,297,068,004.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,778,644.75 : 2,335,822,999.47 = 939,989,468.42 : x
  2. Step 2: Convert to fraction form
    1,692,778,644.75/2,335,822,999.47 = 939,989,468.42/x
  3. Step 3: Cross multiply
    1,692,778,644.75x = 2,335,822,999.47 × 939,989,468.42
  4. Step 4: Simplify right side
    1,692,778,644.75x = 2,195,649,019,583,335,936
  5. Step 5: Solve for x
    x = 2,195,649,019,583,335,936/1,692,778,644.75
  6. Step 6: Final answer
    x = 1,297,068,004.96

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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.