Home / 12,603,782.40-18,915,004.80-8,342,534.40

Finding the Fourth Proportional to 12,603,782.40, 18,915,004.80 and 8,342,534.40

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Solution

The fourth proportional to 12,603,782.40, 18,915,004.80 and 8,342,534.40 is: 12,519,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,782.40 : 18,915,004.80 = 8,342,534.40 : x
  2. Step 2: Convert to fraction form
    12,603,782.40/18,915,004.80 = 8,342,534.40/x
  3. Step 3: Cross multiply
    12,603,782.40x = 18,915,004.80 × 8,342,534.40
  4. Step 4: Simplify right side
    12,603,782.40x = 157,799,078,220,165.12
  5. Step 5: Solve for x
    x = 157,799,078,220,165.12/12,603,782.40
  6. Step 6: Final answer
    x = 12,519,977.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.