Home / 12,459,566.40-18,689,349.60-8,806,401.60

Finding the Fourth Proportional to 12,459,566.40, 18,689,349.60 and 8,806,401.60

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Solution

The fourth proportional to 12,459,566.40, 18,689,349.60 and 8,806,401.60 is: 13,209,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,566.40 : 18,689,349.60 = 8,806,401.60 : x
  2. Step 2: Convert to fraction form
    12,459,566.40/18,689,349.60 = 8,806,401.60/x
  3. Step 3: Cross multiply
    12,459,566.40x = 18,689,349.60 × 8,806,401.60
  4. Step 4: Simplify right side
    12,459,566.40x = 164,585,918,220,399.38
  5. Step 5: Solve for x
    x = 164,585,918,220,399.38/12,459,566.40
  6. Step 6: Final answer
    x = 13,209,602.40

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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.