Home / 387,252,925.80-534,409,048.52-213,412,669.80

Finding the Fourth Proportional to 387,252,925.80, 534,409,048.52 and 213,412,669.80

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Solution

The fourth proportional to 387,252,925.80, 534,409,048.52 and 213,412,669.80 is: 294,509,490.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,252,925.80 : 534,409,048.52 = 213,412,669.80 : x
  2. Step 2: Convert to fraction form
    387,252,925.80/534,409,048.52 = 213,412,669.80/x
  3. Step 3: Cross multiply
    387,252,925.80x = 534,409,048.52 × 213,412,669.80
  4. Step 4: Simplify right side
    387,252,925.80x = 114,049,661,809,930,944
  5. Step 5: Solve for x
    x = 114,049,661,809,930,944/387,252,925.80
  6. Step 6: Final answer
    x = 294,509,490.34

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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.