Home / 30,331,520.80-45,497,281.20-9,861,200.80

Finding the Fourth Proportional to 30,331,520.80, 45,497,281.20 and 9,861,200.80

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Solution

The fourth proportional to 30,331,520.80, 45,497,281.20 and 9,861,200.80 is: 14,791,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331,520.80 : 45,497,281.20 = 9,861,200.80 : x
  2. Step 2: Convert to fraction form
    30,331,520.80/45,497,281.20 = 9,861,200.80/x
  3. Step 3: Cross multiply
    30,331,520.80x = 45,497,281.20 × 9,861,200.80
  4. Step 4: Simplify right side
    30,331,520.80x = 448,657,825,767,265
  5. Step 5: Solve for x
    x = 448,657,825,767,265/30,331,520.80
  6. Step 6: Final answer
    x = 14,791,801.20

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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.