Home / 397,889,955.86-549,075,268.08-228,372,098.94

Finding the Fourth Proportional to 397,889,955.86, 549,075,268.08 and 228,372,098.94

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Solution

The fourth proportional to 397,889,955.86, 549,075,268.08 and 228,372,098.94 is: 315,146,109.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,889,955.86 : 549,075,268.08 = 228,372,098.94 : x
  2. Step 2: Convert to fraction form
    397,889,955.86/549,075,268.08 = 228,372,098.94/x
  3. Step 3: Cross multiply
    397,889,955.86x = 549,075,268.08 × 228,372,098.94
  4. Step 4: Simplify right side
    397,889,955.86x = 125,393,471,447,472,800
  5. Step 5: Solve for x
    x = 125,393,471,447,472,800/397,889,955.86
  6. Step 6: Final answer
    x = 315,146,109.12

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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.