Home / 14,658,574.56-20,220,428.16-9,142,372.32

Finding the Fourth Proportional to 14,658,574.56, 20,220,428.16 and 9,142,372.32

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Solution

The fourth proportional to 14,658,574.56, 20,220,428.16 and 9,142,372.32 is: 12,611,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658,574.56 : 20,220,428.16 = 9,142,372.32 : x
  2. Step 2: Convert to fraction form
    14,658,574.56/20,220,428.16 = 9,142,372.32/x
  3. Step 3: Cross multiply
    14,658,574.56x = 20,220,428.16 × 9,142,372.32
  4. Step 4: Simplify right side
    14,658,574.56x = 184,862,682,708,532.53
  5. Step 5: Solve for x
    x = 184,862,682,708,532.53/14,658,574.56
  6. Step 6: Final answer
    x = 12,611,231.87

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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.