Home / 397,962,999.52-549,181,583.32-216,911,541.28

Finding the Fourth Proportional to 397,962,999.52, 549,181,583.32 and 216,911,541.28

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Solution

The fourth proportional to 397,962,999.52, 549,181,583.32 and 216,911,541.28 is: 299,333,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,962,999.52 : 549,181,583.32 = 216,911,541.28 : x
  2. Step 2: Convert to fraction form
    397,962,999.52/549,181,583.32 = 216,911,541.28/x
  3. Step 3: Cross multiply
    397,962,999.52x = 549,181,583.32 × 216,911,541.28
  4. Step 4: Simplify right side
    397,962,999.52x = 119,123,823,680,531,952
  5. Step 5: Solve for x
    x = 119,123,823,680,531,952/397,962,999.52
  6. Step 6: Final answer
    x = 299,333,917.54

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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.