Home / 447,888,588.60-618,351,386.88-398,191,695.64

Finding the Fourth Proportional to 447,888,588.60, 618,351,386.88 and 398,191,695.64

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Solution

The fourth proportional to 447,888,588.60, 618,351,386.88 and 398,191,695.64 is: 549,740,255.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,888,588.60 : 618,351,386.88 = 398,191,695.64 : x
  2. Step 2: Convert to fraction form
    447,888,588.60/618,351,386.88 = 398,191,695.64/x
  3. Step 3: Cross multiply
    447,888,588.60x = 618,351,386.88 × 398,191,695.64
  4. Step 4: Simplify right side
    447,888,588.60x = 246,222,387,240,001,088
  5. Step 5: Solve for x
    x = 246,222,387,240,001,088/447,888,588.60
  6. Step 6: Final answer
    x = 549,740,255.75

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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.