Home / 523,655,915.94-722,611,865.07-288,693,733.86

Finding the Fourth Proportional to 523,655,915.94, 722,611,865.07 and 288,693,733.86

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Solution

The fourth proportional to 523,655,915.94, 722,611,865.07 and 288,693,733.86 is: 398,378,994.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,655,915.94 : 722,611,865.07 = 288,693,733.86 : x
  2. Step 2: Convert to fraction form
    523,655,915.94/722,611,865.07 = 288,693,733.86/x
  3. Step 3: Cross multiply
    523,655,915.94x = 722,611,865.07 × 288,693,733.86
  4. Step 4: Simplify right side
    523,655,915.94x = 208,613,517,458,596,832
  5. Step 5: Solve for x
    x = 208,613,517,458,596,832/523,655,915.94
  6. Step 6: Final answer
    x = 398,378,994.89

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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.