Home / 208,759,099.42-288,052,964.40-120,661,315.66

Finding the Fourth Proportional to 208,759,099.42, 288,052,964.40 and 120,661,315.66

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Solution

The fourth proportional to 208,759,099.42, 288,052,964.40 and 120,661,315.66 is: 166,492,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,759,099.42 : 288,052,964.40 = 120,661,315.66 : x
  2. Step 2: Convert to fraction form
    208,759,099.42/288,052,964.40 = 120,661,315.66/x
  3. Step 3: Cross multiply
    208,759,099.42x = 288,052,964.40 × 120,661,315.66
  4. Step 4: Simplify right side
    208,759,099.42x = 34,756,849,664,267,140
  5. Step 5: Solve for x
    x = 34,756,849,664,267,140/208,759,099.42
  6. Step 6: Final answer
    x = 166,492,621.21

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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.