Home / 72,171,114.40-99,589,979.28-40,807,626.40

Finding the Fourth Proportional to 72,171,114.40, 99,589,979.28 and 40,807,626.40

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Solution

The fourth proportional to 72,171,114.40, 99,589,979.28 and 40,807,626.40 is: 56,311,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,114.40 : 99,589,979.28 = 40,807,626.40 : x
  2. Step 2: Convert to fraction form
    72,171,114.40/99,589,979.28 = 40,807,626.40/x
  3. Step 3: Cross multiply
    72,171,114.40x = 99,589,979.28 × 40,807,626.40
  4. Step 4: Simplify right side
    72,171,114.40x = 4,064,030,667,641,981
  5. Step 5: Solve for x
    x = 4,064,030,667,641,981/72,171,114.40
  6. Step 6: Final answer
    x = 56,311,042.19

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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.