Home / 874,440,037.39-1,311,889,779.78-314,258,425.42

Finding the Fourth Proportional to 874,440,037.39, 1,311,889,779.78 and 314,258,425.42

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Solution

The fourth proportional to 874,440,037.39, 1,311,889,779.78 and 314,258,425.42 is: 471,470,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,440,037.39 : 1,311,889,779.78 = 314,258,425.42 : x
  2. Step 2: Convert to fraction form
    874,440,037.39/1,311,889,779.78 = 314,258,425.42/x
  3. Step 3: Cross multiply
    874,440,037.39x = 1,311,889,779.78 × 314,258,425.42
  4. Step 4: Simplify right side
    874,440,037.39x = 412,272,416,518,253,376
  5. Step 5: Solve for x
    x = 412,272,416,518,253,376/874,440,037.39
  6. Step 6: Final answer
    x = 471,470,196.80

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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.