Home / 120,624,083,521.40-180,936,125,282.10-109,053,124,916.60

Finding the Fourth Proportional to 120,624,083,521.40, 180,936,125,282.10 and 109,053,124,916.60

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Solution

The fourth proportional to 120,624,083,521.40, 180,936,125,282.10 and 109,053,124,916.60 is: 163,579,687,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,624,083,521.40 : 180,936,125,282.10 = 109,053,124,916.60 : x
  2. Step 2: Convert to fraction form
    120,624,083,521.40/180,936,125,282.10 = 109,053,124,916.60/x
  3. Step 3: Cross multiply
    120,624,083,521.40x = 180,936,125,282.10 × 109,053,124,916.60
  4. Step 4: Simplify right side
    120,624,083,521.40x = 19,731,649,872,314,440,351,744
  5. Step 5: Solve for x
    x = 19,731,649,872,314,440,351,744/120,624,083,521.40
  6. Step 6: Final answer
    x = 163,579,687,374.90

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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.