Home / 30,348,478.80-45,522,718.20-9,880,127.10

Finding the Fourth Proportional to 30,348,478.80, 45,522,718.20 and 9,880,127.10

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Solution

The fourth proportional to 30,348,478.80, 45,522,718.20 and 9,880,127.10 is: 14,820,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348,478.80 : 45,522,718.20 = 9,880,127.10 : x
  2. Step 2: Convert to fraction form
    30,348,478.80/45,522,718.20 = 9,880,127.10/x
  3. Step 3: Cross multiply
    30,348,478.80x = 45,522,718.20 × 9,880,127.10
  4. Step 4: Simplify right side
    30,348,478.80x = 449,770,241,753,483.25
  5. Step 5: Solve for x
    x = 449,770,241,753,483.25/30,348,478.80
  6. Step 6: Final answer
    x = 14,820,190.65

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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.