Home / 714,328,856.04-985,740,503.68-396,809,682.24

Finding the Fourth Proportional to 714,328,856.04, 985,740,503.68 and 396,809,682.24

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Solution

The fourth proportional to 714,328,856.04, 985,740,503.68 and 396,809,682.24 is: 547,578,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,328,856.04 : 985,740,503.68 = 396,809,682.24 : x
  2. Step 2: Convert to fraction form
    714,328,856.04/985,740,503.68 = 396,809,682.24/x
  3. Step 3: Cross multiply
    714,328,856.04x = 985,740,503.68 × 396,809,682.24
  4. Step 4: Simplify right side
    714,328,856.04x = 391,151,376,036,358,336
  5. Step 5: Solve for x
    x = 391,151,376,036,358,336/714,328,856.04
  6. Step 6: Final answer
    x = 547,578,853.53

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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.