Home / 208,747,166.50-312,982,541.88-99,589,185.10

Finding the Fourth Proportional to 208,747,166.50, 312,982,541.88 and 99,589,185.10

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Solution

The fourth proportional to 208,747,166.50, 312,982,541.88 and 99,589,185.10 is: 149,317,841.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,747,166.50 : 312,982,541.88 = 99,589,185.10 : x
  2. Step 2: Convert to fraction form
    208,747,166.50/312,982,541.88 = 99,589,185.10/x
  3. Step 3: Cross multiply
    208,747,166.50x = 312,982,541.88 × 99,589,185.10
  4. Step 4: Simplify right side
    208,747,166.50x = 31,169,676,296,355,820
  5. Step 5: Solve for x
    x = 31,169,676,296,355,820/208,747,166.50
  6. Step 6: Final answer
    x = 149,317,841.38

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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.