Home / 1,440,643,048.48-1,988,109,977.52-845,940,682.36

Finding the Fourth Proportional to 1,440,643,048.48, 1,988,109,977.52 and 845,940,682.36

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Solution

The fourth proportional to 1,440,643,048.48, 1,988,109,977.52 and 845,940,682.36 is: 1,167,411,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,643,048.48 : 1,988,109,977.52 = 845,940,682.36 : x
  2. Step 2: Convert to fraction form
    1,440,643,048.48/1,988,109,977.52 = 845,940,682.36/x
  3. Step 3: Cross multiply
    1,440,643,048.48x = 1,988,109,977.52 × 845,940,682.36
  4. Step 4: Simplify right side
    1,440,643,048.48x = 1,681,823,110,989,992,960
  5. Step 5: Solve for x
    x = 1,681,823,110,989,992,960/1,440,643,048.48
  6. Step 6: Final answer
    x = 1,167,411,395.05

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Double scale
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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.