Home / 10,405,489.60-15,571,492.80-9,072,294.40

Finding the Fourth Proportional to 10,405,489.60, 15,571,492.80 and 9,072,294.40

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Solution

The fourth proportional to 10,405,489.60, 15,571,492.80 and 9,072,294.40 is: 13,576,407.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405,489.60 : 15,571,492.80 = 9,072,294.40 : x
  2. Step 2: Convert to fraction form
    10,405,489.60/15,571,492.80 = 9,072,294.40/x
  3. Step 3: Cross multiply
    10,405,489.60x = 15,571,492.80 × 9,072,294.40
  4. Step 4: Simplify right side
    10,405,489.60x = 141,269,166,929,080.34
  5. Step 5: Solve for x
    x = 141,269,166,929,080.34/10,405,489.60
  6. Step 6: Final answer
    x = 13,576,407.49

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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.