Home / 148,987,895.76-205,621,194.60-90,248,837.04

Finding the Fourth Proportional to 148,987,895.76, 205,621,194.60 and 90,248,837.04

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Solution

The fourth proportional to 148,987,895.76, 205,621,194.60 and 90,248,837.04 is: 124,554,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,987,895.76 : 205,621,194.60 = 90,248,837.04 : x
  2. Step 2: Convert to fraction form
    148,987,895.76/205,621,194.60 = 90,248,837.04/x
  3. Step 3: Cross multiply
    148,987,895.76x = 205,621,194.60 × 90,248,837.04
  4. Step 4: Simplify right side
    148,987,895.76x = 18,557,073,683,425,528
  5. Step 5: Solve for x
    x = 18,557,073,683,425,528/148,987,895.76
  6. Step 6: Final answer
    x = 124,554,237.03

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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.