Home / 280,846,168.18-387,533,754.32-161,807,703.50

Finding the Fourth Proportional to 280,846,168.18, 387,533,754.32 and 161,807,703.50

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Solution

The fourth proportional to 280,846,168.18, 387,533,754.32 and 161,807,703.50 is: 223,275,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,846,168.18 : 387,533,754.32 = 161,807,703.50 : x
  2. Step 2: Convert to fraction form
    280,846,168.18/387,533,754.32 = 161,807,703.50/x
  3. Step 3: Cross multiply
    280,846,168.18x = 387,533,754.32 × 161,807,703.50
  4. Step 4: Simplify right side
    280,846,168.18x = 62,705,946,815,252,400
  5. Step 5: Solve for x
    x = 62,705,946,815,252,400/280,846,168.18
  6. Step 6: Final answer
    x = 223,275,066.28

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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.