Home / 692,415,982.53-1,038,818,146.69-278,183,682.72

Finding the Fourth Proportional to 692,415,982.53, 1,038,818,146.69 and 278,183,682.72

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Solution

The fourth proportional to 692,415,982.53, 1,038,818,146.69 and 278,183,682.72 is: 417,353,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,415,982.53 : 1,038,818,146.69 = 278,183,682.72 : x
  2. Step 2: Convert to fraction form
    692,415,982.53/1,038,818,146.69 = 278,183,682.72/x
  3. Step 3: Cross multiply
    692,415,982.53x = 1,038,818,146.69 × 278,183,682.72
  4. Step 4: Simplify right side
    692,415,982.53x = 288,982,257,722,923,264
  5. Step 5: Solve for x
    x = 288,982,257,722,923,264/692,415,982.53
  6. Step 6: Final answer
    x = 417,353,534.60

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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.