Home / 8,688,403.64-11,985,013.78-5,419,541.22

Finding the Fourth Proportional to 8,688,403.64, 11,985,013.78 and 5,419,541.22

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Solution

The fourth proportional to 8,688,403.64, 11,985,013.78 and 5,419,541.22 is: 7,475,858.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,403.64 : 11,985,013.78 = 5,419,541.22 : x
  2. Step 2: Convert to fraction form
    8,688,403.64/11,985,013.78 = 5,419,541.22/x
  3. Step 3: Cross multiply
    8,688,403.64x = 11,985,013.78 × 5,419,541.22
  4. Step 4: Simplify right side
    8,688,403.64x = 64,953,276,174,970.27
  5. Step 5: Solve for x
    x = 64,953,276,174,970.27/8,688,403.64
  6. Step 6: Final answer
    x = 7,475,858.49

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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.