Home / 40,827,615.80-61,241,423.70-20,420,281.40

Finding the Fourth Proportional to 40,827,615.80, 61,241,423.70 and 20,420,281.40

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Solution

The fourth proportional to 40,827,615.80, 61,241,423.70 and 20,420,281.40 is: 30,630,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,827,615.80 : 61,241,423.70 = 20,420,281.40 : x
  2. Step 2: Convert to fraction form
    40,827,615.80/61,241,423.70 = 20,420,281.40/x
  3. Step 3: Cross multiply
    40,827,615.80x = 61,241,423.70 × 20,420,281.40
  4. Step 4: Simplify right side
    40,827,615.80x = 1,250,567,105,290,629.25
  5. Step 5: Solve for x
    x = 1,250,567,105,290,629.25/40,827,615.80
  6. Step 6: Final answer
    x = 30,630,422.10

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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.