Home / 1,229,678,978,069.40-1,697,010,332,323.80-680,970,283,002.49

Finding the Fourth Proportional to 1,229,678,978,069.40, 1,697,010,332,323.80 and 680,970,283,002.49

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Solution

The fourth proportional to 1,229,678,978,069.40, 1,697,010,332,323.80 and 680,970,283,002.49 is: 939,768,530,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,678,978,069.40 : 1,697,010,332,323.80 = 680,970,283,002.49 : x
  2. Step 2: Convert to fraction form
    1,229,678,978,069.40/1,697,010,332,323.80 = 680,970,283,002.49/x
  3. Step 3: Cross multiply
    1,229,678,978,069.40x = 1,697,010,332,323.80 × 680,970,283,002.49
  4. Step 4: Simplify right side
    1,229,678,978,069.40x = 1,155,613,606,260,687,666,937,856
  5. Step 5: Solve for x
    x = 1,155,613,606,260,687,666,937,856/1,229,678,978,069.40
  6. Step 6: Final answer
    x = 939,768,530,543.64

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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.