Home / 805,356,718.29-1,207,251,609.05-385,068,871.43

Finding the Fourth Proportional to 805,356,718.29, 1,207,251,609.05 and 385,068,871.43

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Solution

The fourth proportional to 805,356,718.29, 1,207,251,609.05 and 385,068,871.43 is: 577,228,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,356,718.29 : 1,207,251,609.05 = 385,068,871.43 : x
  2. Step 2: Convert to fraction form
    805,356,718.29/1,207,251,609.05 = 385,068,871.43/x
  3. Step 3: Cross multiply
    805,356,718.29x = 1,207,251,609.05 × 385,068,871.43
  4. Step 4: Simplify right side
    805,356,718.29x = 464,875,014,628,388,672
  5. Step 5: Solve for x
    x = 464,875,014,628,388,672/805,356,718.29
  6. Step 6: Final answer
    x = 577,228,703.84

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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.