Home / 781,629,101.33-1,078,666,900.19-424,411,934.01

Finding the Fourth Proportional to 781,629,101.33, 1,078,666,900.19 and 424,411,934.01

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Solution

The fourth proportional to 781,629,101.33, 1,078,666,900.19 and 424,411,934.01 is: 585,698,644.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,629,101.33 : 1,078,666,900.19 = 424,411,934.01 : x
  2. Step 2: Convert to fraction form
    781,629,101.33/1,078,666,900.19 = 424,411,934.01/x
  3. Step 3: Cross multiply
    781,629,101.33x = 1,078,666,900.19 × 424,411,934.01
  4. Step 4: Simplify right side
    781,629,101.33x = 457,799,105,267,315,648
  5. Step 5: Solve for x
    x = 457,799,105,267,315,648/781,629,101.33
  6. Step 6: Final answer
    x = 585,698,644.65

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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.