Home / 19,118,869,553.60-28,678,304,330.40-10,853,899,121.60

Finding the Fourth Proportional to 19,118,869,553.60, 28,678,304,330.40 and 10,853,899,121.60

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Solution

The fourth proportional to 19,118,869,553.60, 28,678,304,330.40 and 10,853,899,121.60 is: 16,280,848,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,869,553.60 : 28,678,304,330.40 = 10,853,899,121.60 : x
  2. Step 2: Convert to fraction form
    19,118,869,553.60/28,678,304,330.40 = 10,853,899,121.60/x
  3. Step 3: Cross multiply
    19,118,869,553.60x = 28,678,304,330.40 × 10,853,899,121.60
  4. Step 4: Simplify right side
    19,118,869,553.60x = 311,271,422,180,706,091,008
  5. Step 5: Solve for x
    x = 311,271,422,180,706,091,008/19,118,869,553.60
  6. Step 6: Final answer
    x = 16,280,848,682.40

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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.