Home / 813,582,986.94-1,122,757,296.39-442,306,436.22

Finding the Fourth Proportional to 813,582,986.94, 1,122,757,296.39 and 442,306,436.22

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Solution

The fourth proportional to 813,582,986.94, 1,122,757,296.39 and 442,306,436.22 is: 610,389,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,582,986.94 : 1,122,757,296.39 = 442,306,436.22 : x
  2. Step 2: Convert to fraction form
    813,582,986.94/1,122,757,296.39 = 442,306,436.22/x
  3. Step 3: Cross multiply
    813,582,986.94x = 1,122,757,296.39 × 442,306,436.22
  4. Step 4: Simplify right side
    813,582,986.94x = 496,602,778,506,263,232
  5. Step 5: Solve for x
    x = 496,602,778,506,263,232/813,582,986.94
  6. Step 6: Final answer
    x = 610,389,826.83

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1.5x scale

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.