Home / 206,408,706.69-309,666,646.98-77,017,290.18

Finding the Fourth Proportional to 206,408,706.69, 309,666,646.98 and 77,017,290.18

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Solution

The fourth proportional to 206,408,706.69, 309,666,646.98 and 77,017,290.18 is: 115,545,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,408,706.69 : 309,666,646.98 = 77,017,290.18 : x
  2. Step 2: Convert to fraction form
    206,408,706.69/309,666,646.98 = 77,017,290.18/x
  3. Step 3: Cross multiply
    206,408,706.69x = 309,666,646.98 × 77,017,290.18
  4. Step 4: Simplify right side
    206,408,706.69x = 23,849,686,009,526,284
  5. Step 5: Solve for x
    x = 23,849,686,009,526,284/206,408,706.69
  6. Step 6: Final answer
    x = 115,545,930.17

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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.