Home / 1,983,714,871.38-2,975,578,425.90-489,746,587.20

Finding the Fourth Proportional to 1,983,714,871.38, 2,975,578,425.90 and 489,746,587.20

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Solution

The fourth proportional to 1,983,714,871.38, 2,975,578,425.90 and 489,746,587.20 is: 734,621,391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983,714,871.38 : 2,975,578,425.90 = 489,746,587.20 : x
  2. Step 2: Convert to fraction form
    1,983,714,871.38/2,975,578,425.90 = 489,746,587.20/x
  3. Step 3: Cross multiply
    1,983,714,871.38x = 2,975,578,425.90 × 489,746,587.20
  4. Step 4: Simplify right side
    1,983,714,871.38x = 1,457,279,379,030,473,216
  5. Step 5: Solve for x
    x = 1,457,279,379,030,473,216/1,983,714,871.38
  6. Step 6: Final answer
    x = 734,621,391.44

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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.