Home / 522,488,436.44-721,033,830.48-287,539,096.10

Finding the Fourth Proportional to 522,488,436.44, 721,033,830.48 and 287,539,096.10

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Solution

The fourth proportional to 522,488,436.44, 721,033,830.48 and 287,539,096.10 is: 396,803,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,488,436.44 : 721,033,830.48 = 287,539,096.10 : x
  2. Step 2: Convert to fraction form
    522,488,436.44/721,033,830.48 = 287,539,096.10/x
  3. Step 3: Cross multiply
    522,488,436.44x = 721,033,830.48 × 287,539,096.10
  4. Step 4: Simplify right side
    522,488,436.44x = 207,325,415,873,739,840
  5. Step 5: Solve for x
    x = 207,325,415,873,739,840/522,488,436.44
  6. Step 6: Final answer
    x = 396,803,836.05

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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.