Home / 28,257,725,515.20-42,386,588,272.80-8,628,389,246.40

Finding the Fourth Proportional to 28,257,725,515.20, 42,386,588,272.80 and 8,628,389,246.40

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Solution

The fourth proportional to 28,257,725,515.20, 42,386,588,272.80 and 8,628,389,246.40 is: 12,942,583,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257,725,515.20 : 42,386,588,272.80 = 8,628,389,246.40 : x
  2. Step 2: Convert to fraction form
    28,257,725,515.20/42,386,588,272.80 = 8,628,389,246.40/x
  3. Step 3: Cross multiply
    28,257,725,515.20x = 42,386,588,272.80 × 8,628,389,246.40
  4. Step 4: Simplify right side
    28,257,725,515.20x = 365,727,982,444,611,895,296
  5. Step 5: Solve for x
    x = 365,727,982,444,611,895,296/28,257,725,515.20
  6. Step 6: Final answer
    x = 12,942,583,869.60

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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.