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Finding the Fourth Proportional to 6,811,347.84, 9,389,893.44 and 5,358,520.08

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Solution

The fourth proportional to 6,811,347.84, 9,389,893.44 and 5,358,520.08 is: 7,387,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811,347.84 : 9,389,893.44 = 5,358,520.08 : x
  2. Step 2: Convert to fraction form
    6,811,347.84/9,389,893.44 = 5,358,520.08/x
  3. Step 3: Cross multiply
    6,811,347.84x = 9,389,893.44 × 5,358,520.08
  4. Step 4: Simplify right side
    6,811,347.84x = 50,315,932,547,300.27
  5. Step 5: Solve for x
    x = 50,315,932,547,300.27/6,811,347.84
  6. Step 6: Final answer
    x = 7,387,074.30

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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.