Home / 30,783,737.84-42,463,048.92-20,329,850.32

Finding the Fourth Proportional to 30,783,737.84, 42,463,048.92 and 20,329,850.32

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Solution

The fourth proportional to 30,783,737.84, 42,463,048.92 and 20,329,850.32 is: 28,042,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,783,737.84 : 42,463,048.92 = 20,329,850.32 : x
  2. Step 2: Convert to fraction form
    30,783,737.84/42,463,048.92 = 20,329,850.32/x
  3. Step 3: Cross multiply
    30,783,737.84x = 42,463,048.92 × 20,329,850.32
  4. Step 4: Simplify right side
    30,783,737.84x = 863,267,428,674,437.75
  5. Step 5: Solve for x
    x = 863,267,428,674,437.75/30,783,737.84
  6. Step 6: Final answer
    x = 28,042,969.74

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1.5x scale

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.