Home / 70,546,638.80-105,819,958.20-40,257,563.60

Finding the Fourth Proportional to 70,546,638.80, 105,819,958.20 and 40,257,563.60

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Solution

The fourth proportional to 70,546,638.80, 105,819,958.20 and 40,257,563.60 is: 60,386,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,546,638.80 : 105,819,958.20 = 40,257,563.60 : x
  2. Step 2: Convert to fraction form
    70,546,638.80/105,819,958.20 = 40,257,563.60/x
  3. Step 3: Cross multiply
    70,546,638.80x = 105,819,958.20 × 40,257,563.60
  4. Step 4: Simplify right side
    70,546,638.80x = 4,260,053,697,385,842
  5. Step 5: Solve for x
    x = 4,260,053,697,385,842/70,546,638.80
  6. Step 6: Final answer
    x = 60,386,345.40

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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.