Home / 12,812,966,496.80-19,219,449,745.20-4,089,712,839.20

Finding the Fourth Proportional to 12,812,966,496.80, 19,219,449,745.20 and 4,089,712,839.20

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Solution

The fourth proportional to 12,812,966,496.80, 19,219,449,745.20 and 4,089,712,839.20 is: 6,134,569,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812,966,496.80 : 19,219,449,745.20 = 4,089,712,839.20 : x
  2. Step 2: Convert to fraction form
    12,812,966,496.80/19,219,449,745.20 = 4,089,712,839.20/x
  3. Step 3: Cross multiply
    12,812,966,496.80x = 19,219,449,745.20 × 4,089,712,839.20
  4. Step 4: Simplify right side
    12,812,966,496.80x = 78,602,030,385,303,601,152
  5. Step 5: Solve for x
    x = 78,602,030,385,303,601,152/12,812,966,496.80
  6. Step 6: Final answer
    x = 6,134,569,258.80

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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.