Home / 9,187,216.40-12,678,234-5,112,835.40

Finding the Fourth Proportional to 9,187,216.40, 12,678,234 and 5,112,835.40

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Solution

The fourth proportional to 9,187,216.40, 12,678,234 and 5,112,835.40 is: 7,055,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187,216.40 : 12,678,234 = 5,112,835.40 : x
  2. Step 2: Convert to fraction form
    9,187,216.40/12,678,234 = 5,112,835.40/x
  3. Step 3: Cross multiply
    9,187,216.40x = 12,678,234 × 5,112,835.40
  4. Step 4: Simplify right side
    9,187,216.40x = 64,821,723,604,683.60
  5. Step 5: Solve for x
    x = 64,821,723,604,683.60/9,187,216.40
  6. Step 6: Final answer
    x = 7,055,643.49

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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.