Home / 12,328,128,014.80-18,492,192,022.20-7,103,850,408.40

Finding the Fourth Proportional to 12,328,128,014.80, 18,492,192,022.20 and 7,103,850,408.40

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Solution

The fourth proportional to 12,328,128,014.80, 18,492,192,022.20 and 7,103,850,408.40 is: 10,655,775,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328,128,014.80 : 18,492,192,022.20 = 7,103,850,408.40 : x
  2. Step 2: Convert to fraction form
    12,328,128,014.80/18,492,192,022.20 = 7,103,850,408.40/x
  3. Step 3: Cross multiply
    12,328,128,014.80x = 18,492,192,022.20 × 7,103,850,408.40
  4. Step 4: Simplify right side
    12,328,128,014.80x = 131,365,765,849,116,688,384
  5. Step 5: Solve for x
    x = 131,365,765,849,116,688,384/12,328,128,014.80
  6. Step 6: Final answer
    x = 10,655,775,612.60

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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.