Home / 12,692,117.40-19,038,176.10-12,196,105.80

Finding the Fourth Proportional to 12,692,117.40, 19,038,176.10 and 12,196,105.80

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Solution

The fourth proportional to 12,692,117.40, 19,038,176.10 and 12,196,105.80 is: 18,294,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692,117.40 : 19,038,176.10 = 12,196,105.80 : x
  2. Step 2: Convert to fraction form
    12,692,117.40/19,038,176.10 = 12,196,105.80/x
  3. Step 3: Cross multiply
    12,692,117.40x = 19,038,176.10 × 12,196,105.80
  4. Step 4: Simplify right side
    12,692,117.40x = 232,191,609,954,631.41
  5. Step 5: Solve for x
    x = 232,191,609,954,631.41/12,692,117.40
  6. Step 6: Final answer
    x = 18,294,158.70

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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.