Home / 208,397,354.68-312,643,647.06-72,082,623.16

Finding the Fourth Proportional to 208,397,354.68, 312,643,647.06 and 72,082,623.16

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Solution

The fourth proportional to 208,397,354.68, 312,643,647.06 and 72,082,623.16 is: 108,140,404.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,397,354.68 : 312,643,647.06 = 72,082,623.16 : x
  2. Step 2: Convert to fraction form
    208,397,354.68/312,643,647.06 = 72,082,623.16/x
  3. Step 3: Cross multiply
    208,397,354.68x = 312,643,647.06 × 72,082,623.16
  4. Step 4: Simplify right side
    208,397,354.68x = 22,536,174,194,394,020
  5. Step 5: Solve for x
    x = 22,536,174,194,394,020/208,397,354.68
  6. Step 6: Final answer
    x = 108,140,404.32

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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.