Home / 383,107,718.86-528,688,631.91-206,895,697.18

Finding the Fourth Proportional to 383,107,718.86, 528,688,631.91 and 206,895,697.18

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Solution

The fourth proportional to 383,107,718.86, 528,688,631.91 and 206,895,697.18 is: 285,516,051.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,107,718.86 : 528,688,631.91 = 206,895,697.18 : x
  2. Step 2: Convert to fraction form
    383,107,718.86/528,688,631.91 = 206,895,697.18/x
  3. Step 3: Cross multiply
    383,107,718.86x = 528,688,631.91 × 206,895,697.18
  4. Step 4: Simplify right side
    383,107,718.86x = 109,383,403,090,159,856
  5. Step 5: Solve for x
    x = 109,383,403,090,159,856/383,107,718.86
  6. Step 6: Final answer
    x = 285,516,051.24

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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.