Home / 12,840,762.24-17,720,138.88-7,039,438.56

Finding the Fourth Proportional to 12,840,762.24, 17,720,138.88 and 7,039,438.56

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Solution

The fourth proportional to 12,840,762.24, 17,720,138.88 and 7,039,438.56 is: 9,714,363.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840,762.24 : 17,720,138.88 = 7,039,438.56 : x
  2. Step 2: Convert to fraction form
    12,840,762.24/17,720,138.88 = 7,039,438.56/x
  3. Step 3: Cross multiply
    12,840,762.24x = 17,720,138.88 × 7,039,438.56
  4. Step 4: Simplify right side
    12,840,762.24x = 124,739,828,920,427.20
  5. Step 5: Solve for x
    x = 124,739,828,920,427.20/12,840,762.24
  6. Step 6: Final answer
    x = 9,714,363.26

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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.