Home / 143,160,994.91-197,562,340.55-81,281,333.48

Finding the Fourth Proportional to 143,160,994.91, 197,562,340.55 and 81,281,333.48

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Solution

The fourth proportional to 143,160,994.91, 197,562,340.55 and 81,281,333.48 is: 112,168,335.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,160,994.91 : 197,562,340.55 = 81,281,333.48 : x
  2. Step 2: Convert to fraction form
    143,160,994.91/197,562,340.55 = 81,281,333.48/x
  3. Step 3: Cross multiply
    143,160,994.91x = 197,562,340.55 × 81,281,333.48
  4. Step 4: Simplify right side
    143,160,994.91x = 16,058,130,484,549,268
  5. Step 5: Solve for x
    x = 16,058,130,484,549,268/143,160,994.91
  6. Step 6: Final answer
    x = 112,168,335.34

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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.