Home / 919,392,631.92-1,268,751,380.22-501,712,023.60

Finding the Fourth Proportional to 919,392,631.92, 1,268,751,380.22 and 501,712,023.60

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Solution

The fourth proportional to 919,392,631.92, 1,268,751,380.22 and 501,712,023.60 is: 692,356,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,392,631.92 : 1,268,751,380.22 = 501,712,023.60 : x
  2. Step 2: Convert to fraction form
    919,392,631.92/1,268,751,380.22 = 501,712,023.60/x
  3. Step 3: Cross multiply
    919,392,631.92x = 1,268,751,380.22 × 501,712,023.60
  4. Step 4: Simplify right side
    919,392,631.92x = 636,547,822,415,469,312
  5. Step 5: Solve for x
    x = 636,547,822,415,469,312/919,392,631.92
  6. Step 6: Final answer
    x = 692,356,889.01

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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.