Home / 398,484,907.04-549,922,797.60-231,208,537.88

Finding the Fourth Proportional to 398,484,907.04, 549,922,797.60 and 231,208,537.88

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Solution

The fourth proportional to 398,484,907.04, 549,922,797.60 and 231,208,537.88 is: 319,075,688.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,484,907.04 : 549,922,797.60 = 231,208,537.88 : x
  2. Step 2: Convert to fraction form
    398,484,907.04/549,922,797.60 = 231,208,537.88/x
  3. Step 3: Cross multiply
    398,484,907.04x = 549,922,797.60 × 231,208,537.88
  4. Step 4: Simplify right side
    398,484,907.04x = 127,146,845,979,975,168
  5. Step 5: Solve for x
    x = 127,146,845,979,975,168/398,484,907.04
  6. Step 6: Final answer
    x = 319,075,688.27

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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.