Home / 398,530,445.76-549,959,544-233,627,846.40

Finding the Fourth Proportional to 398,530,445.76, 549,959,544 and 233,627,846.40

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Solution

The fourth proportional to 398,530,445.76, 549,959,544 and 233,627,846.40 is: 322,399,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,530,445.76 : 549,959,544 = 233,627,846.40 : x
  2. Step 2: Convert to fraction form
    398,530,445.76/549,959,544 = 233,627,846.40/x
  3. Step 3: Cross multiply
    398,530,445.76x = 549,959,544 × 233,627,846.40
  4. Step 4: Simplify right side
    398,530,445.76x = 128,485,863,871,846,048
  5. Step 5: Solve for x
    x = 128,485,863,871,846,048/398,530,445.76
  6. Step 6: Final answer
    x = 322,399,117.15

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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.