Home / 280,855,328.40-421,284,304.80-99,102,506.40

Finding the Fourth Proportional to 280,855,328.40, 421,284,304.80 and 99,102,506.40

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Solution

The fourth proportional to 280,855,328.40, 421,284,304.80 and 99,102,506.40 is: 148,654,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,855,328.40 : 421,284,304.80 = 99,102,506.40 : x
  2. Step 2: Convert to fraction form
    280,855,328.40/421,284,304.80 = 99,102,506.40/x
  3. Step 3: Cross multiply
    280,855,328.40x = 421,284,304.80 × 99,102,506.40
  4. Step 4: Simplify right side
    280,855,328.40x = 41,750,330,512,661,552
  5. Step 5: Solve for x
    x = 41,750,330,512,661,552/280,855,328.40
  6. Step 6: Final answer
    x = 148,654,222.62

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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.