Home / 13,122,007.20-19,683,010.80-8,838,986.40

Finding the Fourth Proportional to 13,122,007.20, 19,683,010.80 and 8,838,986.40

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Solution

The fourth proportional to 13,122,007.20, 19,683,010.80 and 8,838,986.40 is: 13,258,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,007.20 : 19,683,010.80 = 8,838,986.40 : x
  2. Step 2: Convert to fraction form
    13,122,007.20/19,683,010.80 = 8,838,986.40/x
  3. Step 3: Cross multiply
    13,122,007.20x = 19,683,010.80 × 8,838,986.40
  4. Step 4: Simplify right side
    13,122,007.20x = 173,977,864,772,253.12
  5. Step 5: Solve for x
    x = 173,977,864,772,253.12/13,122,007.20
  6. Step 6: Final answer
    x = 13,258,479.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.