Home / 309,910,809.90-427,696,252.47-170,681,536.38

Finding the Fourth Proportional to 309,910,809.90, 427,696,252.47 and 170,681,536.38

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Solution

The fourth proportional to 309,910,809.90, 427,696,252.47 and 170,681,536.38 is: 235,551,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,910,809.90 : 427,696,252.47 = 170,681,536.38 : x
  2. Step 2: Convert to fraction form
    309,910,809.90/427,696,252.47 = 170,681,536.38/x
  3. Step 3: Cross multiply
    309,910,809.90x = 427,696,252.47 × 170,681,536.38
  4. Step 4: Simplify right side
    309,910,809.90x = 72,999,853,475,547,968
  5. Step 5: Solve for x
    x = 72,999,853,475,547,968/309,910,809.90
  6. Step 6: Final answer
    x = 235,551,168.73

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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.