Home / 115,911,915.76-173,580,895.56-85,133,510.38

Finding the Fourth Proportional to 115,911,915.76, 173,580,895.56 and 85,133,510.38

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Solution

The fourth proportional to 115,911,915.76, 173,580,895.56 and 85,133,510.38 is: 127,489,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,911,915.76 : 173,580,895.56 = 85,133,510.38 : x
  2. Step 2: Convert to fraction form
    115,911,915.76/173,580,895.56 = 85,133,510.38/x
  3. Step 3: Cross multiply
    115,911,915.76x = 173,580,895.56 × 85,133,510.38
  4. Step 4: Simplify right side
    115,911,915.76x = 14,777,550,973,926,956
  5. Step 5: Solve for x
    x = 14,777,550,973,926,956/115,911,915.76
  6. Step 6: Final answer
    x = 127,489,489.56

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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.