Home / 547,938,570.26-821,824,810.40-149,128,215.71

Finding the Fourth Proportional to 547,938,570.26, 821,824,810.40 and 149,128,215.71

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Solution

The fourth proportional to 547,938,570.26, 821,824,810.40 and 149,128,215.71 is: 223,669,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,938,570.26 : 821,824,810.40 = 149,128,215.71 : x
  2. Step 2: Convert to fraction form
    547,938,570.26/821,824,810.40 = 149,128,215.71/x
  3. Step 3: Cross multiply
    547,938,570.26x = 821,824,810.40 × 149,128,215.71
  4. Step 4: Simplify right side
    547,938,570.26x = 122,557,267,597,424,768
  5. Step 5: Solve for x
    x = 122,557,267,597,424,768/547,938,570.26
  6. Step 6: Final answer
    x = 223,669,721.84

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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.