Home / 1,294,461,768.33-1,941,728,830.25-421,063,139.84

Finding the Fourth Proportional to 1,294,461,768.33, 1,941,728,830.25 and 421,063,139.84

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Solution

The fourth proportional to 1,294,461,768.33, 1,941,728,830.25 and 421,063,139.84 is: 631,606,477.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,461,768.33 : 1,941,728,830.25 = 421,063,139.84 : x
  2. Step 2: Convert to fraction form
    1,294,461,768.33/1,941,728,830.25 = 421,063,139.84/x
  3. Step 3: Cross multiply
    1,294,461,768.33x = 1,941,728,830.25 × 421,063,139.84
  4. Step 4: Simplify right side
    1,294,461,768.33x = 817,590,437,988,822,272
  5. Step 5: Solve for x
    x = 817,590,437,988,822,272/1,294,461,768.33
  6. Step 6: Final answer
    x = 631,606,477.68

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Double scale
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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.