Home / 70,656,091.20-105,984,136.80-65,554,257.60

Finding the Fourth Proportional to 70,656,091.20, 105,984,136.80 and 65,554,257.60

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Solution

The fourth proportional to 70,656,091.20, 105,984,136.80 and 65,554,257.60 is: 98,331,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656,091.20 : 105,984,136.80 = 65,554,257.60 : x
  2. Step 2: Convert to fraction form
    70,656,091.20/105,984,136.80 = 65,554,257.60/x
  3. Step 3: Cross multiply
    70,656,091.20x = 105,984,136.80 × 65,554,257.60
  4. Step 4: Simplify right side
    70,656,091.20x = 6,947,711,405,300,840
  5. Step 5: Solve for x
    x = 6,947,711,405,300,840/70,656,091.20
  6. Step 6: Final answer
    x = 98,331,386.40

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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.