Home / 12,457,557.40-18,686,336.10-8,152,885.30

Finding the Fourth Proportional to 12,457,557.40, 18,686,336.10 and 8,152,885.30

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Solution

The fourth proportional to 12,457,557.40, 18,686,336.10 and 8,152,885.30 is: 12,229,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,557.40 : 18,686,336.10 = 8,152,885.30 : x
  2. Step 2: Convert to fraction form
    12,457,557.40/18,686,336.10 = 8,152,885.30/x
  3. Step 3: Cross multiply
    12,457,557.40x = 18,686,336.10 × 8,152,885.30
  4. Step 4: Simplify right side
    12,457,557.40x = 152,347,554,900,549.34
  5. Step 5: Solve for x
    x = 152,347,554,900,549.34/12,457,557.40
  6. Step 6: Final answer
    x = 12,229,327.95

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Double scale
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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.