Home / 38,115,903.12-52,599,905.76-20,712,206.88

Finding the Fourth Proportional to 38,115,903.12, 52,599,905.76 and 20,712,206.88

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Solution

The fourth proportional to 38,115,903.12, 52,599,905.76 and 20,712,206.88 is: 28,582,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115,903.12 : 52,599,905.76 = 20,712,206.88 : x
  2. Step 2: Convert to fraction form
    38,115,903.12/52,599,905.76 = 20,712,206.88/x
  3. Step 3: Cross multiply
    38,115,903.12x = 52,599,905.76 × 20,712,206.88
  4. Step 4: Simplify right side
    38,115,903.12x = 1,089,460,129,969,623.50
  5. Step 5: Solve for x
    x = 1,089,460,129,969,623.50/38,115,903.12
  6. Step 6: Final answer
    x = 28,582,823.46

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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.