Home / 67,068,136.80-100,602,205.20-66,430,407.60

Finding the Fourth Proportional to 67,068,136.80, 100,602,205.20 and 66,430,407.60

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Solution

The fourth proportional to 67,068,136.80, 100,602,205.20 and 66,430,407.60 is: 99,645,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,136.80 : 100,602,205.20 = 66,430,407.60 : x
  2. Step 2: Convert to fraction form
    67,068,136.80/100,602,205.20 = 66,430,407.60/x
  3. Step 3: Cross multiply
    67,068,136.80x = 100,602,205.20 × 66,430,407.60
  4. Step 4: Simplify right side
    67,068,136.80x = 6,683,045,496,894,840
  5. Step 5: Solve for x
    x = 6,683,045,496,894,840/67,068,136.80
  6. Step 6: Final answer
    x = 99,645,611.40

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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.