Home / 13,225,347.15-18,253,664.15-7,643,830.74

Finding the Fourth Proportional to 13,225,347.15, 18,253,664.15 and 7,643,830.74

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Solution

The fourth proportional to 13,225,347.15, 18,253,664.15 and 7,643,830.74 is: 10,550,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225,347.15 : 18,253,664.15 = 7,643,830.74 : x
  2. Step 2: Convert to fraction form
    13,225,347.15/18,253,664.15 = 7,643,830.74/x
  3. Step 3: Cross multiply
    13,225,347.15x = 18,253,664.15 × 7,643,830.74
  4. Step 4: Simplify right side
    13,225,347.15x = 139,527,919,040,735.58
  5. Step 5: Solve for x
    x = 139,527,919,040,735.58/13,225,347.15
  6. Step 6: Final answer
    x = 10,550,038.31

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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.