Home / 398,427,569.46-549,830,779.53-222,226,921.96

Finding the Fourth Proportional to 398,427,569.46, 549,830,779.53 and 222,226,921.96

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Solution

The fourth proportional to 398,427,569.46, 549,830,779.53 and 222,226,921.96 is: 306,673,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,427,569.46 : 549,830,779.53 = 222,226,921.96 : x
  2. Step 2: Convert to fraction form
    398,427,569.46/549,830,779.53 = 222,226,921.96/x
  3. Step 3: Cross multiply
    398,427,569.46x = 549,830,779.53 × 222,226,921.96
  4. Step 4: Simplify right side
    398,427,569.46x = 122,187,201,733,819,280
  5. Step 5: Solve for x
    x = 122,187,201,733,819,280/398,427,569.46
  6. Step 6: Final answer
    x = 306,673,561.52

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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.