Home / 628,369,209.20-941,907,085.09-278,779,913.57

Finding the Fourth Proportional to 628,369,209.20, 941,907,085.09 and 278,779,913.57

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Solution

The fourth proportional to 628,369,209.20, 941,907,085.09 and 278,779,913.57 is: 417,882,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,369,209.20 : 941,907,085.09 = 278,779,913.57 : x
  2. Step 2: Convert to fraction form
    628,369,209.20/941,907,085.09 = 278,779,913.57/x
  3. Step 3: Cross multiply
    628,369,209.20x = 941,907,085.09 × 278,779,913.57
  4. Step 4: Simplify right side
    628,369,209.20x = 262,584,775,772,360,832
  5. Step 5: Solve for x
    x = 262,584,775,772,360,832/628,369,209.20
  6. Step 6: Final answer
    x = 417,882,945.13

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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.