Home / 3,486,156.16-4,811,419.20-2,128,812.16

Finding the Fourth Proportional to 3,486,156.16, 4,811,419.20 and 2,128,812.16

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Solution

The fourth proportional to 3,486,156.16, 4,811,419.20 and 2,128,812.16 is: 2,938,080.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486,156.16 : 4,811,419.20 = 2,128,812.16 : x
  2. Step 2: Convert to fraction form
    3,486,156.16/4,811,419.20 = 2,128,812.16/x
  3. Step 3: Cross multiply
    3,486,156.16x = 4,811,419.20 × 2,128,812.16
  4. Step 4: Simplify right side
    3,486,156.16x = 10,242,607,699,817.47
  5. Step 5: Solve for x
    x = 10,242,607,699,817.47/3,486,156.16
  6. Step 6: Final answer
    x = 2,938,080.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.