Home / 290,020,353.13-435,026,270.17-71,670,689.34

Finding the Fourth Proportional to 290,020,353.13, 435,026,270.17 and 71,670,689.34

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Solution

The fourth proportional to 290,020,353.13, 435,026,270.17 and 71,670,689.34 is: 107,504,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,020,353.13 : 435,026,270.17 = 71,670,689.34 : x
  2. Step 2: Convert to fraction form
    290,020,353.13/435,026,270.17 = 71,670,689.34/x
  3. Step 3: Cross multiply
    290,020,353.13x = 435,026,270.17 × 71,670,689.34
  4. Step 4: Simplify right side
    290,020,353.13x = 31,178,632,664,092,980
  5. Step 5: Solve for x
    x = 31,178,632,664,092,980/290,020,353.13
  6. Step 6: Final answer
    x = 107,504,981.38

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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.