Home / 120,282,776,281.76-180,311,999,752.21-40,638,627,655.33

Finding the Fourth Proportional to 120,282,776,281.76, 180,311,999,752.21 and 40,638,627,655.33

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Solution

The fourth proportional to 120,282,776,281.76, 180,311,999,752.21 and 40,638,627,655.33 is: 60,920,045,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,282,776,281.76 : 180,311,999,752.21 = 40,638,627,655.33 : x
  2. Step 2: Convert to fraction form
    120,282,776,281.76/180,311,999,752.21 = 40,638,627,655.33/x
  3. Step 3: Cross multiply
    120,282,776,281.76x = 180,311,999,752.21 × 40,638,627,655.33
  4. Step 4: Simplify right side
    120,282,776,281.76x = 7,327,632,219,718,738,247,680
  5. Step 5: Solve for x
    x = 7,327,632,219,718,738,247,680/120,282,776,281.76
  6. Step 6: Final answer
    x = 60,920,045,631.09

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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.