Home / 1,315,755,361.62-1,972,237,371.93-615,657,645.54

Finding the Fourth Proportional to 1,315,755,361.62, 1,972,237,371.93 and 615,657,645.54

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Solution

The fourth proportional to 1,315,755,361.62, 1,972,237,371.93 and 615,657,645.54 is: 922,833,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,755,361.62 : 1,972,237,371.93 = 615,657,645.54 : x
  2. Step 2: Convert to fraction form
    1,315,755,361.62/1,972,237,371.93 = 615,657,645.54/x
  3. Step 3: Cross multiply
    1,315,755,361.62x = 1,972,237,371.93 × 615,657,645.54
  4. Step 4: Simplify right side
    1,315,755,361.62x = 1,214,223,016,848,421,120
  5. Step 5: Solve for x
    x = 1,214,223,016,848,421,120/1,315,755,361.62
  6. Step 6: Final answer
    x = 922,833,417.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.