Home / 400,978,444.40-553,465,578.87-242,183,344.22

Finding the Fourth Proportional to 400,978,444.40, 553,465,578.87 and 242,183,344.22

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Solution

The fourth proportional to 400,978,444.40, 553,465,578.87 and 242,183,344.22 is: 334,282,669.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,978,444.40 : 553,465,578.87 = 242,183,344.22 : x
  2. Step 2: Convert to fraction form
    400,978,444.40/553,465,578.87 = 242,183,344.22/x
  3. Step 3: Cross multiply
    400,978,444.40x = 553,465,578.87 × 242,183,344.22
  4. Step 4: Simplify right side
    400,978,444.40x = 134,040,144,798,627,440
  5. Step 5: Solve for x
    x = 134,040,144,798,627,440/400,978,444.40
  6. Step 6: Final answer
    x = 334,282,669.49

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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.