Home / 280,871,711.10-421,307,566.65-144,822,815.10

Finding the Fourth Proportional to 280,871,711.10, 421,307,566.65 and 144,822,815.10

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Solution

The fourth proportional to 280,871,711.10, 421,307,566.65 and 144,822,815.10 is: 217,234,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,871,711.10 : 421,307,566.65 = 144,822,815.10 : x
  2. Step 2: Convert to fraction form
    280,871,711.10/421,307,566.65 = 144,822,815.10/x
  3. Step 3: Cross multiply
    280,871,711.10x = 421,307,566.65 × 144,822,815.10
  4. Step 4: Simplify right side
    280,871,711.10x = 61,014,947,825,183,872
  5. Step 5: Solve for x
    x = 61,014,947,825,183,872/280,871,711.10
  6. Step 6: Final answer
    x = 217,234,222.65

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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.