Home / 447,888,581.14-618,351,376.62-398,191,688.20

Finding the Fourth Proportional to 447,888,581.14, 618,351,376.62 and 398,191,688.20

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Solution

The fourth proportional to 447,888,581.14, 618,351,376.62 and 398,191,688.20 is: 549,740,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,888,581.14 : 618,351,376.62 = 398,191,688.20 : x
  2. Step 2: Convert to fraction form
    447,888,581.14/618,351,376.62 = 398,191,688.20/x
  3. Step 3: Cross multiply
    447,888,581.14x = 618,351,376.62 × 398,191,688.20
  4. Step 4: Simplify right side
    447,888,581.14x = 246,222,378,557,111,808
  5. Step 5: Solve for x
    x = 246,222,378,557,111,808/447,888,581.14
  6. Step 6: Final answer
    x = 549,740,245.51

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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.