Home / 209,767,957.57-289,535,611.71-123,913,712.44

Finding the Fourth Proportional to 209,767,957.57, 289,535,611.71 and 123,913,712.44

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Solution

The fourth proportional to 209,767,957.57, 289,535,611.71 and 123,913,712.44 is: 171,033,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,767,957.57 : 289,535,611.71 = 123,913,712.44 : x
  2. Step 2: Convert to fraction form
    209,767,957.57/289,535,611.71 = 123,913,712.44/x
  3. Step 3: Cross multiply
    209,767,957.57x = 289,535,611.71 × 123,913,712.44
  4. Step 4: Simplify right side
    209,767,957.57x = 35,877,432,530,572,432
  5. Step 5: Solve for x
    x = 35,877,432,530,572,432/209,767,957.57
  6. Step 6: Final answer
    x = 171,033,903.11

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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.