Home / 1,118,808,001.80-1,678,212,002.70-887,524,878.60

Finding the Fourth Proportional to 1,118,808,001.80, 1,678,212,002.70 and 887,524,878.60

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Solution

The fourth proportional to 1,118,808,001.80, 1,678,212,002.70 and 887,524,878.60 is: 1,331,287,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,808,001.80 : 1,678,212,002.70 = 887,524,878.60 : x
  2. Step 2: Convert to fraction form
    1,118,808,001.80/1,678,212,002.70 = 887,524,878.60/x
  3. Step 3: Cross multiply
    1,118,808,001.80x = 1,678,212,002.70 × 887,524,878.60
  4. Step 4: Simplify right side
    1,118,808,001.80x = 1,489,454,903,961,380,352
  5. Step 5: Solve for x
    x = 1,489,454,903,961,380,352/1,118,808,001.80
  6. Step 6: Final answer
    x = 1,331,287,317.90

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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.