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Finding the Fourth Proportional to 806,486,284.60, 1,209,729,426.90 and 806,486,284.60

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Solution

The fourth proportional to 806,486,284.60, 1,209,729,426.90 and 806,486,284.60 is: 1,209,729,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,486,284.60 : 1,209,729,426.90 = 806,486,284.60 : x
  2. Step 2: Convert to fraction form
    806,486,284.60/1,209,729,426.90 = 806,486,284.60/x
  3. Step 3: Cross multiply
    806,486,284.60x = 1,209,729,426.90 × 806,486,284.60
  4. Step 4: Simplify right side
    806,486,284.60x = 975,630,190,871,868,416
  5. Step 5: Solve for x
    x = 975,630,190,871,868,416/806,486,284.60
  6. Step 6: Final answer
    x = 1,209,729,426.90

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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.