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Finding the Fourth Proportional to 7,700,905, 10,603,511.94 and 6,839,969.32

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Solution

The fourth proportional to 7,700,905, 10,603,511.94 and 6,839,969.32 is: 9,418,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700,905 : 10,603,511.94 = 6,839,969.32 : x
  2. Step 2: Convert to fraction form
    7,700,905/10,603,511.94 = 6,839,969.32/x
  3. Step 3: Cross multiply
    7,700,905x = 10,603,511.94 × 6,839,969.32
  4. Step 4: Simplify right side
    7,700,905x = 72,527,696,353,853.69
  5. Step 5: Solve for x
    x = 72,527,696,353,853.69/7,700,905
  6. Step 6: Final answer
    x = 9,418,074.42

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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.