Home / 976,202,029.84-1,463,712,979.08-393,255,428.86

Finding the Fourth Proportional to 976,202,029.84, 1,463,712,979.08 and 393,255,428.86

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Solution

The fourth proportional to 976,202,029.84, 1,463,712,979.08 and 393,255,428.86 is: 589,645,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,202,029.84 : 1,463,712,979.08 = 393,255,428.86 : x
  2. Step 2: Convert to fraction form
    976,202,029.84/1,463,712,979.08 = 393,255,428.86/x
  3. Step 3: Cross multiply
    976,202,029.84x = 1,463,712,979.08 × 393,255,428.86
  4. Step 4: Simplify right side
    976,202,029.84x = 575,613,075,316,053,568
  5. Step 5: Solve for x
    x = 575,613,075,316,053,568/976,202,029.84
  6. Step 6: Final answer
    x = 589,645,439.90

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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.