Home / 716,744,790,027.37-989,108,207,025.78-387,147,826,509.65

Finding the Fourth Proportional to 716,744,790,027.37, 989,108,207,025.78 and 387,147,826,509.65

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Solution

The fourth proportional to 716,744,790,027.37, 989,108,207,025.78 and 387,147,826,509.65 is: 534,264,214,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,744,790,027.37 : 989,108,207,025.78 = 387,147,826,509.65 : x
  2. Step 2: Convert to fraction form
    716,744,790,027.37/989,108,207,025.78 = 387,147,826,509.65/x
  3. Step 3: Cross multiply
    716,744,790,027.37x = 989,108,207,025.78 × 387,147,826,509.65
  4. Step 4: Simplify right side
    716,744,790,027.37x = 382,931,092,532,887,686,217,728
  5. Step 5: Solve for x
    x = 382,931,092,532,887,686,217,728/716,744,790,027.37
  6. Step 6: Final answer
    x = 534,264,214,907.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.