Home / 770,397,547.80-1,155,684,005.82-279,342,098.04

Finding the Fourth Proportional to 770,397,547.80, 1,155,684,005.82 and 279,342,098.04

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Solution

The fourth proportional to 770,397,547.80, 1,155,684,005.82 and 279,342,098.04 is: 419,044,940.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,397,547.80 : 1,155,684,005.82 = 279,342,098.04 : x
  2. Step 2: Convert to fraction form
    770,397,547.80/1,155,684,005.82 = 279,342,098.04/x
  3. Step 3: Cross multiply
    770,397,547.80x = 1,155,684,005.82 × 279,342,098.04
  4. Step 4: Simplify right side
    770,397,547.80x = 322,831,194,857,030,400
  5. Step 5: Solve for x
    x = 322,831,194,857,030,400/770,397,547.80
  6. Step 6: Final answer
    x = 419,044,940.86

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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.