Home / 209,767,957.07-289,535,611.02-123,913,711.94

Finding the Fourth Proportional to 209,767,957.07, 289,535,611.02 and 123,913,711.94

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Solution

The fourth proportional to 209,767,957.07, 289,535,611.02 and 123,913,711.94 is: 171,033,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,767,957.07 : 289,535,611.02 = 123,913,711.94 : x
  2. Step 2: Convert to fraction form
    209,767,957.07/289,535,611.02 = 123,913,711.94/x
  3. Step 3: Cross multiply
    209,767,957.07x = 289,535,611.02 × 123,913,711.94
  4. Step 4: Simplify right side
    209,767,957.07x = 35,877,432,300,304,168
  5. Step 5: Solve for x
    x = 35,877,432,300,304,168/209,767,957.07
  6. Step 6: Final answer
    x = 171,033,902.42

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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.