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Finding the Fourth Proportional to 70,955,998.80, 106,433,998.20 and 30,645,214.80

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Solution

The fourth proportional to 70,955,998.80, 106,433,998.20 and 30,645,214.80 is: 45,967,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,955,998.80 : 106,433,998.20 = 30,645,214.80 : x
  2. Step 2: Convert to fraction form
    70,955,998.80/106,433,998.20 = 30,645,214.80/x
  3. Step 3: Cross multiply
    70,955,998.80x = 106,433,998.20 × 30,645,214.80
  4. Step 4: Simplify right side
    70,955,998.80x = 3,261,692,736,861,813.50
  5. Step 5: Solve for x
    x = 3,261,692,736,861,813.50/70,955,998.80
  6. Step 6: Final answer
    x = 45,967,822.20

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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.