Home / 813,345,790.40-1,122,428,554.08-442,067,710.40

Finding the Fourth Proportional to 813,345,790.40, 1,122,428,554.08 and 442,067,710.40

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Solution

The fourth proportional to 813,345,790.40, 1,122,428,554.08 and 442,067,710.40 is: 610,059,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,345,790.40 : 1,122,428,554.08 = 442,067,710.40 : x
  2. Step 2: Convert to fraction form
    813,345,790.40/1,122,428,554.08 = 442,067,710.40/x
  3. Step 3: Cross multiply
    813,345,790.40x = 1,122,428,554.08 × 442,067,710.40
  4. Step 4: Simplify right side
    813,345,790.40x = 496,189,420,989,728,128
  5. Step 5: Solve for x
    x = 496,189,420,989,728,128/813,345,790.40
  6. Step 6: Final answer
    x = 610,059,616.52

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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.