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Finding the Fourth Proportional to 9,998,828.91, 13,798,401.35 and 5,415,150.29

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Solution

The fourth proportional to 9,998,828.91, 13,798,401.35 and 5,415,150.29 is: 7,472,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998,828.91 : 13,798,401.35 = 5,415,150.29 : x
  2. Step 2: Convert to fraction form
    9,998,828.91/13,798,401.35 = 5,415,150.29/x
  3. Step 3: Cross multiply
    9,998,828.91x = 13,798,401.35 × 5,415,150.29
  4. Step 4: Simplify right side
    9,998,828.91x = 74,720,416,975,921.14
  5. Step 5: Solve for x
    x = 74,720,416,975,921.14/9,998,828.91
  6. Step 6: Final answer
    x = 7,472,916.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.