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Finding the Fourth Proportional to 275,603,407.80, 413,405,111.70 and 245,470,703.10

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Solution

The fourth proportional to 275,603,407.80, 413,405,111.70 and 245,470,703.10 is: 368,206,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,603,407.80 : 413,405,111.70 = 245,470,703.10 : x
  2. Step 2: Convert to fraction form
    275,603,407.80/413,405,111.70 = 245,470,703.10/x
  3. Step 3: Cross multiply
    275,603,407.80x = 413,405,111.70 × 245,470,703.10
  4. Step 4: Simplify right side
    275,603,407.80x = 101,478,843,434,133,024
  5. Step 5: Solve for x
    x = 101,478,843,434,133,024/275,603,407.80
  6. Step 6: Final answer
    x = 368,206,054.65

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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.