Home / 1,386,972,348.72-1,914,011,724.60-760,430,442.48

Finding the Fourth Proportional to 1,386,972,348.72, 1,914,011,724.60 and 760,430,442.48

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Solution

The fourth proportional to 1,386,972,348.72, 1,914,011,724.60 and 760,430,442.48 is: 1,049,388,464.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,972,348.72 : 1,914,011,724.60 = 760,430,442.48 : x
  2. Step 2: Convert to fraction form
    1,386,972,348.72/1,914,011,724.60 = 760,430,442.48/x
  3. Step 3: Cross multiply
    1,386,972,348.72x = 1,914,011,724.60 × 760,430,442.48
  4. Step 4: Simplify right side
    1,386,972,348.72x = 1,455,472,782,649,485,824
  5. Step 5: Solve for x
    x = 1,455,472,782,649,485,824/1,386,972,348.72
  6. Step 6: Final answer
    x = 1,049,388,464.01

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Double scale
Find fourth proportional to 1,386,972,349.72, 1,914,011,725.98 and 760,430,443.48
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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.