Home / 13,126,436,404.80-19,689,654,607.20-12,667,789,262.40

Finding the Fourth Proportional to 13,126,436,404.80, 19,689,654,607.20 and 12,667,789,262.40

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Solution

The fourth proportional to 13,126,436,404.80, 19,689,654,607.20 and 12,667,789,262.40 is: 19,001,683,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126,436,404.80 : 19,689,654,607.20 = 12,667,789,262.40 : x
  2. Step 2: Convert to fraction form
    13,126,436,404.80/19,689,654,607.20 = 12,667,789,262.40/x
  3. Step 3: Cross multiply
    13,126,436,404.80x = 19,689,654,607.20 × 12,667,789,262.40
  4. Step 4: Simplify right side
    13,126,436,404.80x = 249,424,395,213,452,836,864
  5. Step 5: Solve for x
    x = 249,424,395,213,452,836,864/13,126,436,404.80
  6. Step 6: Final answer
    x = 19,001,683,893.60

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Double scale
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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.