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Finding the Fourth Proportional to 806,486,288.60, 1,209,729,432.90 and 806,486,288.60

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Solution

The fourth proportional to 806,486,288.60, 1,209,729,432.90 and 806,486,288.60 is: 1,209,729,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,486,288.60 : 1,209,729,432.90 = 806,486,288.60 : x
  2. Step 2: Convert to fraction form
    806,486,288.60/1,209,729,432.90 = 806,486,288.60/x
  3. Step 3: Cross multiply
    806,486,288.60x = 1,209,729,432.90 × 806,486,288.60
  4. Step 4: Simplify right side
    806,486,288.60x = 975,630,200,549,703,808
  5. Step 5: Solve for x
    x = 975,630,200,549,703,808/806,486,288.60
  6. Step 6: Final answer
    x = 1,209,729,432.90

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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.