Home / 13,860,176.41-19,124,918.67-7,978,674.21

Finding the Fourth Proportional to 13,860,176.41, 19,124,918.67 and 7,978,674.21

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Solution

The fourth proportional to 13,860,176.41, 19,124,918.67 and 7,978,674.21 is: 11,009,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860,176.41 : 19,124,918.67 = 7,978,674.21 : x
  2. Step 2: Convert to fraction form
    13,860,176.41/19,124,918.67 = 7,978,674.21/x
  3. Step 3: Cross multiply
    13,860,176.41x = 19,124,918.67 × 7,978,674.21
  4. Step 4: Simplify right side
    13,860,176.41x = 152,591,495,360,676.50
  5. Step 5: Solve for x
    x = 152,591,495,360,676.50/13,860,176.41
  6. Step 6: Final answer
    x = 11,009,347.27

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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.