Home / 1,117,638,646.76-1,542,374,232.40-615,879,752

Finding the Fourth Proportional to 1,117,638,646.76, 1,542,374,232.40 and 615,879,752

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Solution

The fourth proportional to 1,117,638,646.76, 1,542,374,232.40 and 615,879,752 is: 849,932,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,638,646.76 : 1,542,374,232.40 = 615,879,752 : x
  2. Step 2: Convert to fraction form
    1,117,638,646.76/1,542,374,232.40 = 615,879,752/x
  3. Step 3: Cross multiply
    1,117,638,646.76x = 1,542,374,232.40 × 615,879,752
  4. Step 4: Simplify right side
    1,117,638,646.76x = 949,917,059,741,702,400
  5. Step 5: Solve for x
    x = 949,917,059,741,702,400/1,117,638,646.76
  6. Step 6: Final answer
    x = 849,932,187.38

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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.