Home / 1,693,195,393.63-2,336,082,490.35-978,470,564.83

Finding the Fourth Proportional to 1,693,195,393.63, 2,336,082,490.35 and 978,470,564.83

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Solution

The fourth proportional to 1,693,195,393.63, 2,336,082,490.35 and 978,470,564.83 is: 1,349,984,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,195,393.63 : 2,336,082,490.35 = 978,470,564.83 : x
  2. Step 2: Convert to fraction form
    1,693,195,393.63/2,336,082,490.35 = 978,470,564.83/x
  3. Step 3: Cross multiply
    1,693,195,393.63x = 2,336,082,490.35 × 978,470,564.83
  4. Step 4: Simplify right side
    1,693,195,393.63x = 2,285,787,953,822,237,440
  5. Step 5: Solve for x
    x = 2,285,787,953,822,237,440/1,693,195,393.63
  6. Step 6: Final answer
    x = 1,349,984,746.25

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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.