Home / 152,091,762.78-209,886,743.25-82,477,126.02

Finding the Fourth Proportional to 152,091,762.78, 209,886,743.25 and 82,477,126.02

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Solution

The fourth proportional to 152,091,762.78, 209,886,743.25 and 82,477,126.02 is: 113,818,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,091,762.78 : 209,886,743.25 = 82,477,126.02 : x
  2. Step 2: Convert to fraction form
    152,091,762.78/209,886,743.25 = 82,477,126.02/x
  3. Step 3: Cross multiply
    152,091,762.78x = 209,886,743.25 × 82,477,126.02
  4. Step 4: Simplify right side
    152,091,762.78x = 17,310,855,372,957,634
  5. Step 5: Solve for x
    x = 17,310,855,372,957,634/152,091,762.78
  6. Step 6: Final answer
    x = 113,818,493.89

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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.