Home / 9,918,823.56-13,688,431.20-5,508,569.40

Finding the Fourth Proportional to 9,918,823.56, 13,688,431.20 and 5,508,569.40

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Solution

The fourth proportional to 9,918,823.56, 13,688,431.20 and 5,508,569.40 is: 7,602,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918,823.56 : 13,688,431.20 = 5,508,569.40 : x
  2. Step 2: Convert to fraction form
    9,918,823.56/13,688,431.20 = 5,508,569.40/x
  3. Step 3: Cross multiply
    9,918,823.56x = 13,688,431.20 × 5,508,569.40
  4. Step 4: Simplify right side
    9,918,823.56x = 75,403,673,242,325.28
  5. Step 5: Solve for x
    x = 75,403,673,242,325.28/9,918,823.56
  6. Step 6: Final answer
    x = 7,602,078.29

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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.