Home / 72,430,482,945.88-99,954,071,074.74-40,315,153,745.80

Finding the Fourth Proportional to 72,430,482,945.88, 99,954,071,074.74 and 40,315,153,745.80

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Solution

The fourth proportional to 72,430,482,945.88, 99,954,071,074.74 and 40,315,153,745.80 is: 55,634,914,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430,482,945.88 : 99,954,071,074.74 = 40,315,153,745.80 : x
  2. Step 2: Convert to fraction form
    72,430,482,945.88/99,954,071,074.74 = 40,315,153,745.80/x
  3. Step 3: Cross multiply
    72,430,482,945.88x = 99,954,071,074.74 × 40,315,153,745.80
  4. Step 4: Simplify right side
    72,430,482,945.88x = 4,029,663,742,896,764,354,560
  5. Step 5: Solve for x
    x = 4,029,663,742,896,764,354,560/72,430,482,945.88
  6. Step 6: Final answer
    x = 55,634,914,734.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.