Home / 70,656,014.40-105,987,520.80-36,643,790.40

Finding the Fourth Proportional to 70,656,014.40, 105,987,520.80 and 36,643,790.40

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Solution

The fourth proportional to 70,656,014.40, 105,987,520.80 and 36,643,790.40 is: 54,967,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656,014.40 : 105,987,520.80 = 36,643,790.40 : x
  2. Step 2: Convert to fraction form
    70,656,014.40/105,987,520.80 = 36,643,790.40/x
  3. Step 3: Cross multiply
    70,656,014.40x = 105,987,520.80 × 36,643,790.40
  4. Step 4: Simplify right side
    70,656,014.40x = 3,883,784,497,210,840
  5. Step 5: Solve for x
    x = 3,883,784,497,210,840/70,656,014.40
  6. Step 6: Final answer
    x = 54,967,500.36

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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.