Home / 248,268,408.16-342,585,875.28-138,270,356.32

Finding the Fourth Proportional to 248,268,408.16, 342,585,875.28 and 138,270,356.32

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Solution

The fourth proportional to 248,268,408.16, 342,585,875.28 and 138,270,356.32 is: 190,799,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,268,408.16 : 342,585,875.28 = 138,270,356.32 : x
  2. Step 2: Convert to fraction form
    248,268,408.16/342,585,875.28 = 138,270,356.32/x
  3. Step 3: Cross multiply
    248,268,408.16x = 342,585,875.28 × 138,270,356.32
  4. Step 4: Simplify right side
    248,268,408.16x = 47,369,471,045,164,672
  5. Step 5: Solve for x
    x = 47,369,471,045,164,672/248,268,408.16
  6. Step 6: Final answer
    x = 190,799,431.13

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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.