Home / 398,484,906.04-549,922,796.22-231,208,536.88

Finding the Fourth Proportional to 398,484,906.04, 549,922,796.22 and 231,208,536.88

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Solution

The fourth proportional to 398,484,906.04, 549,922,796.22 and 231,208,536.88 is: 319,075,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,484,906.04 : 549,922,796.22 = 231,208,536.88 : x
  2. Step 2: Convert to fraction form
    398,484,906.04/549,922,796.22 = 231,208,536.88/x
  3. Step 3: Cross multiply
    398,484,906.04x = 549,922,796.22 × 231,208,536.88
  4. Step 4: Simplify right side
    398,484,906.04x = 127,146,845,110,984,592
  5. Step 5: Solve for x
    x = 127,146,845,110,984,592/398,484,906.04
  6. Step 6: Final answer
    x = 319,075,686.89

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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.