Home / 70,004,515.20-105,006,772.80-45,345,652.80

Finding the Fourth Proportional to 70,004,515.20, 105,006,772.80 and 45,345,652.80

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Solution

The fourth proportional to 70,004,515.20, 105,006,772.80 and 45,345,652.80 is: 68,018,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,004,515.20 : 105,006,772.80 = 45,345,652.80 : x
  2. Step 2: Convert to fraction form
    70,004,515.20/105,006,772.80 = 45,345,652.80/x
  3. Step 3: Cross multiply
    70,004,515.20x = 105,006,772.80 × 45,345,652.80
  4. Step 4: Simplify right side
    70,004,515.20x = 4,761,600,661,037,283
  5. Step 5: Solve for x
    x = 4,761,600,661,037,283/70,004,515.20
  6. Step 6: Final answer
    x = 68,018,479.20

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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.