Home / 31,111,999.80-46,667,999.70-20,362,457.40

Finding the Fourth Proportional to 31,111,999.80, 46,667,999.70 and 20,362,457.40

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Solution

The fourth proportional to 31,111,999.80, 46,667,999.70 and 20,362,457.40 is: 30,543,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,111,999.80 : 46,667,999.70 = 20,362,457.40 : x
  2. Step 2: Convert to fraction form
    31,111,999.80/46,667,999.70 = 20,362,457.40/x
  3. Step 3: Cross multiply
    31,111,999.80x = 46,667,999.70 × 20,362,457.40
  4. Step 4: Simplify right side
    31,111,999.80x = 950,275,155,834,462.75
  5. Step 5: Solve for x
    x = 950,275,155,834,462.75/31,111,999.80
  6. Step 6: Final answer
    x = 30,543,686.10

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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.