Home / 70,956,421.20-106,434,631.80-40,639,352.40

Finding the Fourth Proportional to 70,956,421.20, 106,434,631.80 and 40,639,352.40

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Solution

The fourth proportional to 70,956,421.20, 106,434,631.80 and 40,639,352.40 is: 60,959,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956,421.20 : 106,434,631.80 = 40,639,352.40 : x
  2. Step 2: Convert to fraction form
    70,956,421.20/106,434,631.80 = 40,639,352.40/x
  3. Step 3: Cross multiply
    70,956,421.20x = 106,434,631.80 × 40,639,352.40
  4. Step 4: Simplify right side
    70,956,421.20x = 4,325,434,509,284,446
  5. Step 5: Solve for x
    x = 4,325,434,509,284,446/70,956,421.20
  6. Step 6: Final answer
    x = 60,959,028.60

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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.