Home / 281,110,917.40-421,666,376.10-166,036,226.20

Finding the Fourth Proportional to 281,110,917.40, 421,666,376.10 and 166,036,226.20

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Solution

The fourth proportional to 281,110,917.40, 421,666,376.10 and 166,036,226.20 is: 249,054,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,110,917.40 : 421,666,376.10 = 166,036,226.20 : x
  2. Step 2: Convert to fraction form
    281,110,917.40/421,666,376.10 = 166,036,226.20/x
  3. Step 3: Cross multiply
    281,110,917.40x = 421,666,376.10 × 166,036,226.20
  4. Step 4: Simplify right side
    281,110,917.40x = 70,011,893,803,073,872
  5. Step 5: Solve for x
    x = 70,011,893,803,073,872/281,110,917.40
  6. Step 6: Final answer
    x = 249,054,339.30

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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.