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Finding the Fourth Proportional to 3,708,648,018.40, 5,199,751,344.80 and 3,708,648,018.40

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Solution

The fourth proportional to 3,708,648,018.40, 5,199,751,344.80 and 3,708,648,018.40 is: 5,199,751,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708,648,018.40 : 5,199,751,344.80 = 3,708,648,018.40 : x
  2. Step 2: Convert to fraction form
    3,708,648,018.40/5,199,751,344.80 = 3,708,648,018.40/x
  3. Step 3: Cross multiply
    3,708,648,018.40x = 5,199,751,344.80 × 3,708,648,018.40
  4. Step 4: Simplify right side
    3,708,648,018.40x = 19,284,047,521,065,254,912
  5. Step 5: Solve for x
    x = 19,284,047,521,065,254,912/3,708,648,018.40
  6. Step 6: Final answer
    x = 5,199,751,344.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.