Home / 781,629,101.14-1,078,666,899.93-424,411,933.82

Finding the Fourth Proportional to 781,629,101.14, 1,078,666,899.93 and 424,411,933.82

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Solution

The fourth proportional to 781,629,101.14, 1,078,666,899.93 and 424,411,933.82 is: 585,698,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,629,101.14 : 1,078,666,899.93 = 424,411,933.82 : x
  2. Step 2: Convert to fraction form
    781,629,101.14/1,078,666,899.93 = 424,411,933.82/x
  3. Step 3: Cross multiply
    781,629,101.14x = 1,078,666,899.93 × 424,411,933.82
  4. Step 4: Simplify right side
    781,629,101.14x = 457,799,104,952,393,408
  5. Step 5: Solve for x
    x = 457,799,104,952,393,408/781,629,101.14
  6. Step 6: Final answer
    x = 585,698,644.39

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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.