Home / 7,203,480,432.10-9,941,113,680.06-3,988,390,394.50

Finding the Fourth Proportional to 7,203,480,432.10, 9,941,113,680.06 and 3,988,390,394.50

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Solution

The fourth proportional to 7,203,480,432.10, 9,941,113,680.06 and 3,988,390,394.50 is: 5,504,150,762.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203,480,432.10 : 9,941,113,680.06 = 3,988,390,394.50 : x
  2. Step 2: Convert to fraction form
    7,203,480,432.10/9,941,113,680.06 = 3,988,390,394.50/x
  3. Step 3: Cross multiply
    7,203,480,432.10x = 9,941,113,680.06 × 3,988,390,394.50
  4. Step 4: Simplify right side
    7,203,480,432.10x = 39,649,042,312,183,848,960
  5. Step 5: Solve for x
    x = 39,649,042,312,183,848,960/7,203,480,432.10
  6. Step 6: Final answer
    x = 5,504,150,762.39

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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.