Home / 286,011,021.80-429,016,532.70-221,440,940.30

Finding the Fourth Proportional to 286,011,021.80, 429,016,532.70 and 221,440,940.30

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Solution

The fourth proportional to 286,011,021.80, 429,016,532.70 and 221,440,940.30 is: 332,161,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011,021.80 : 429,016,532.70 = 221,440,940.30 : x
  2. Step 2: Convert to fraction form
    286,011,021.80/429,016,532.70 = 221,440,940.30/x
  3. Step 3: Cross multiply
    286,011,021.80x = 429,016,532.70 × 221,440,940.30
  4. Step 4: Simplify right side
    286,011,021.80x = 95,001,824,405,333,696
  5. Step 5: Solve for x
    x = 95,001,824,405,333,696/286,011,021.80
  6. Step 6: Final answer
    x = 332,161,410.45

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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.