Home / 701,953,172.28-968,683,547.88-388,680,658.38

Finding the Fourth Proportional to 701,953,172.28, 968,683,547.88 and 388,680,658.38

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Solution

The fourth proportional to 701,953,172.28, 968,683,547.88 and 388,680,658.38 is: 536,372,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,953,172.28 : 968,683,547.88 = 388,680,658.38 : x
  2. Step 2: Convert to fraction form
    701,953,172.28/968,683,547.88 = 388,680,658.38/x
  3. Step 3: Cross multiply
    701,953,172.28x = 968,683,547.88 × 388,680,658.38
  4. Step 4: Simplify right side
    701,953,172.28x = 376,508,559,151,872,640
  5. Step 5: Solve for x
    x = 376,508,559,151,872,640/701,953,172.28
  6. Step 6: Final answer
    x = 536,372,758.21

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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.