Home / 608,670,154.68-839,966,441.55-330,211,678.20

Finding the Fourth Proportional to 608,670,154.68, 839,966,441.55 and 330,211,678.20

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Solution

The fourth proportional to 608,670,154.68, 839,966,441.55 and 330,211,678.20 is: 455,692,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,670,154.68 : 839,966,441.55 = 330,211,678.20 : x
  2. Step 2: Convert to fraction form
    608,670,154.68/839,966,441.55 = 330,211,678.20/x
  3. Step 3: Cross multiply
    608,670,154.68x = 839,966,441.55 × 330,211,678.20
  4. Step 4: Simplify right side
    608,670,154.68x = 277,366,728,295,907,680
  5. Step 5: Solve for x
    x = 277,366,728,295,907,680/608,670,154.68
  6. Step 6: Final answer
    x = 455,692,999.18

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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.