Home / 879,369,715.68-1,319,096,994.16-289,146,887.76

Finding the Fourth Proportional to 879,369,715.68, 1,319,096,994.16 and 289,146,887.76

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Solution

The fourth proportional to 879,369,715.68, 1,319,096,994.16 and 289,146,887.76 is: 433,734,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,369,715.68 : 1,319,096,994.16 = 289,146,887.76 : x
  2. Step 2: Convert to fraction form
    879,369,715.68/1,319,096,994.16 = 289,146,887.76/x
  3. Step 3: Cross multiply
    879,369,715.68x = 1,319,096,994.16 × 289,146,887.76
  4. Step 4: Simplify right side
    879,369,715.68x = 381,412,790,514,934,912
  5. Step 5: Solve for x
    x = 381,412,790,514,934,912/879,369,715.68
  6. Step 6: Final answer
    x = 433,734,280.03

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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.