Home / 154,666,623.37-213,387,707.36-87,678,399.20

Finding the Fourth Proportional to 154,666,623.37, 213,387,707.36 and 87,678,399.20

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Solution

The fourth proportional to 154,666,623.37, 213,387,707.36 and 87,678,399.20 is: 120,966,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,666,623.37 : 213,387,707.36 = 87,678,399.20 : x
  2. Step 2: Convert to fraction form
    154,666,623.37/213,387,707.36 = 87,678,399.20/x
  3. Step 3: Cross multiply
    154,666,623.37x = 213,387,707.36 × 87,678,399.20
  4. Step 4: Simplify right side
    154,666,623.37x = 18,709,492,590,282,860
  5. Step 5: Solve for x
    x = 18,709,492,590,282,860/154,666,623.37
  6. Step 6: Final answer
    x = 120,966,580.78

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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.