Home / 154,557,280.48-213,294,162.18-84,945,128.80

Finding the Fourth Proportional to 154,557,280.48, 213,294,162.18 and 84,945,128.80

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Solution

The fourth proportional to 154,557,280.48, 213,294,162.18 and 84,945,128.80 is: 117,227,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557,280.48 : 213,294,162.18 = 84,945,128.80 : x
  2. Step 2: Convert to fraction form
    154,557,280.48/213,294,162.18 = 84,945,128.80/x
  3. Step 3: Cross multiply
    154,557,280.48x = 213,294,162.18 × 84,945,128.80
  4. Step 4: Simplify right side
    154,557,280.48x = 18,118,300,078,668,188
  5. Step 5: Solve for x
    x = 18,118,300,078,668,188/154,557,280.48
  6. Step 6: Final answer
    x = 117,227,089.03

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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.