Home / 985,632,001.60-1,478,351,920.20-258,620,713.60

Finding the Fourth Proportional to 985,632,001.60, 1,478,351,920.20 and 258,620,713.60

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Solution

The fourth proportional to 985,632,001.60, 1,478,351,920.20 and 258,620,713.60 is: 387,905,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,632,001.60 : 1,478,351,920.20 = 258,620,713.60 : x
  2. Step 2: Convert to fraction form
    985,632,001.60/1,478,351,920.20 = 258,620,713.60/x
  3. Step 3: Cross multiply
    985,632,001.60x = 1,478,351,920.20 × 258,620,713.60
  4. Step 4: Simplify right side
    985,632,001.60x = 382,332,428,554,054,272
  5. Step 5: Solve for x
    x = 382,332,428,554,054,272/985,632,001.60
  6. Step 6: Final answer
    x = 387,905,859.32

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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.