Home / 13,758,422.40-20,637,633.60-7,381,130.40

Finding the Fourth Proportional to 13,758,422.40, 20,637,633.60 and 7,381,130.40

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Solution

The fourth proportional to 13,758,422.40, 20,637,633.60 and 7,381,130.40 is: 11,071,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758,422.40 : 20,637,633.60 = 7,381,130.40 : x
  2. Step 2: Convert to fraction form
    13,758,422.40/20,637,633.60 = 7,381,130.40/x
  3. Step 3: Cross multiply
    13,758,422.40x = 20,637,633.60 × 7,381,130.40
  4. Step 4: Simplify right side
    13,758,422.40x = 152,329,064,749,021.47
  5. Step 5: Solve for x
    x = 152,329,064,749,021.47/13,758,422.40
  6. Step 6: Final answer
    x = 11,071,695.60

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Similar ratio
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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.