Home / 519,492,537.41-716,890,841.10-281,335,786.65

Finding the Fourth Proportional to 519,492,537.41, 716,890,841.10 and 281,335,786.65

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Solution

The fourth proportional to 519,492,537.41, 716,890,841.10 and 281,335,786.65 is: 388,238,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,492,537.41 : 716,890,841.10 = 281,335,786.65 : x
  2. Step 2: Convert to fraction form
    519,492,537.41/716,890,841.10 = 281,335,786.65/x
  3. Step 3: Cross multiply
    519,492,537.41x = 716,890,841.10 × 281,335,786.65
  4. Step 4: Simplify right side
    519,492,537.41x = 201,687,048,723,048,640
  5. Step 5: Solve for x
    x = 201,687,048,723,048,640/519,492,537.41
  6. Step 6: Final answer
    x = 388,238,587.08

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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.