Home / 5,128,131.16-7,069,895.67-3,289,397.55

Finding the Fourth Proportional to 5,128,131.16, 7,069,895.67 and 3,289,397.55

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Solution

The fourth proportional to 5,128,131.16, 7,069,895.67 and 3,289,397.55 is: 4,534,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,131.16 : 7,069,895.67 = 3,289,397.55 : x
  2. Step 2: Convert to fraction form
    5,128,131.16/7,069,895.67 = 3,289,397.55/x
  3. Step 3: Cross multiply
    5,128,131.16x = 7,069,895.67 × 3,289,397.55
  4. Step 4: Simplify right side
    5,128,131.16x = 23,255,697,495,653.61
  5. Step 5: Solve for x
    x = 23,255,697,495,653.61/5,128,131.16
  6. Step 6: Final answer
    x = 4,534,926.42

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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.