Home / 645,790,192.53-968,839,246.58-209,091,008.18

Finding the Fourth Proportional to 645,790,192.53, 968,839,246.58 and 209,091,008.18

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Solution

The fourth proportional to 645,790,192.53, 968,839,246.58 and 209,091,008.18 is: 313,686,360.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,790,192.53 : 968,839,246.58 = 209,091,008.18 : x
  2. Step 2: Convert to fraction form
    645,790,192.53/968,839,246.58 = 209,091,008.18/x
  3. Step 3: Cross multiply
    645,790,192.53x = 968,839,246.58 × 209,091,008.18
  4. Step 4: Simplify right side
    645,790,192.53x = 202,575,574,825,874,176
  5. Step 5: Solve for x
    x = 202,575,574,825,874,176/645,790,192.53
  6. Step 6: Final answer
    x = 313,686,360.01

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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.