Home / 15,021,408.04-20,729,554.02-8,145,888.36

Finding the Fourth Proportional to 15,021,408.04, 20,729,554.02 and 8,145,888.36

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Solution

The fourth proportional to 15,021,408.04, 20,729,554.02 and 8,145,888.36 is: 11,241,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021,408.04 : 20,729,554.02 = 8,145,888.36 : x
  2. Step 2: Convert to fraction form
    15,021,408.04/20,729,554.02 = 8,145,888.36/x
  3. Step 3: Cross multiply
    15,021,408.04x = 20,729,554.02 × 8,145,888.36
  4. Step 4: Simplify right side
    15,021,408.04x = 168,860,632,799,509.22
  5. Step 5: Solve for x
    x = 168,860,632,799,509.22/15,021,408.04
  6. Step 6: Final answer
    x = 11,241,331.86

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1.5x scale

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.