Home / 398,485,152.99-549,923,185.40-231,208,782.75

Finding the Fourth Proportional to 398,485,152.99, 549,923,185.40 and 231,208,782.75

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Solution

The fourth proportional to 398,485,152.99, 549,923,185.40 and 231,208,782.75 is: 319,076,054.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,485,152.99 : 549,923,185.40 = 231,208,782.75 : x
  2. Step 2: Convert to fraction form
    398,485,152.99/549,923,185.40 = 231,208,782.75/x
  3. Step 3: Cross multiply
    398,485,152.99x = 549,923,185.40 × 231,208,782.75
  4. Step 4: Simplify right side
    398,485,152.99x = 127,147,070,301,180,528
  5. Step 5: Solve for x
    x = 127,147,070,301,180,528/398,485,152.99
  6. Step 6: Final answer
    x = 319,076,054.27

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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.