Home / 840,540,885.60-1,260,811,328.40-266,112,213.60

Finding the Fourth Proportional to 840,540,885.60, 1,260,811,328.40 and 266,112,213.60

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Solution

The fourth proportional to 840,540,885.60, 1,260,811,328.40 and 266,112,213.60 is: 399,168,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,540,885.60 : 1,260,811,328.40 = 266,112,213.60 : x
  2. Step 2: Convert to fraction form
    840,540,885.60/1,260,811,328.40 = 266,112,213.60/x
  3. Step 3: Cross multiply
    840,540,885.60x = 1,260,811,328.40 × 266,112,213.60
  4. Step 4: Simplify right side
    840,540,885.60x = 335,517,293,532,480,576
  5. Step 5: Solve for x
    x = 335,517,293,532,480,576/840,540,885.60
  6. Step 6: Final answer
    x = 399,168,320.40

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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.