Home / 1,007,686,089.60-1,511,529,134.40-426,077,059.20

Finding the Fourth Proportional to 1,007,686,089.60, 1,511,529,134.40 and 426,077,059.20

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Solution

The fourth proportional to 1,007,686,089.60, 1,511,529,134.40 and 426,077,059.20 is: 639,115,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,686,089.60 : 1,511,529,134.40 = 426,077,059.20 : x
  2. Step 2: Convert to fraction form
    1,007,686,089.60/1,511,529,134.40 = 426,077,059.20/x
  3. Step 3: Cross multiply
    1,007,686,089.60x = 1,511,529,134.40 × 426,077,059.20
  4. Step 4: Simplify right side
    1,007,686,089.60x = 644,027,888,480,273,536
  5. Step 5: Solve for x
    x = 644,027,888,480,273,536/1,007,686,089.60
  6. Step 6: Final answer
    x = 639,115,588.80

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Double scale
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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.