Home / 1,068,768,059.60-1,603,152,089.40-638,786,363.60

Finding the Fourth Proportional to 1,068,768,059.60, 1,603,152,089.40 and 638,786,363.60

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Solution

The fourth proportional to 1,068,768,059.60, 1,603,152,089.40 and 638,786,363.60 is: 958,179,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,768,059.60 : 1,603,152,089.40 = 638,786,363.60 : x
  2. Step 2: Convert to fraction form
    1,068,768,059.60/1,603,152,089.40 = 638,786,363.60/x
  3. Step 3: Cross multiply
    1,068,768,059.60x = 1,603,152,089.40 × 638,786,363.60
  4. Step 4: Simplify right side
    1,068,768,059.60x = 1,024,071,693,485,568,256
  5. Step 5: Solve for x
    x = 1,024,071,693,485,568,256/1,068,768,059.60
  6. Step 6: Final answer
    x = 958,179,545.40

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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.