Home / 839,974,511.52-1,259,925,871.32-287,326,357.20

Finding the Fourth Proportional to 839,974,511.52, 1,259,925,871.32 and 287,326,357.20

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Solution

The fourth proportional to 839,974,511.52, 1,259,925,871.32 and 287,326,357.20 is: 430,977,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,974,511.52 : 1,259,925,871.32 = 287,326,357.20 : x
  2. Step 2: Convert to fraction form
    839,974,511.52/1,259,925,871.32 = 287,326,357.20/x
  3. Step 3: Cross multiply
    839,974,511.52x = 1,259,925,871.32 × 287,326,357.20
  4. Step 4: Simplify right side
    839,974,511.52x = 362,009,910,948,411,520
  5. Step 5: Solve for x
    x = 362,009,910,948,411,520/839,974,511.52
  6. Step 6: Final answer
    x = 430,977,257.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.