Home / 779,239,109.89-1,075,336,680.44-422,003,984.91

Finding the Fourth Proportional to 779,239,109.89, 1,075,336,680.44 and 422,003,984.91

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Solution

The fourth proportional to 779,239,109.89, 1,075,336,680.44 and 422,003,984.91 is: 582,358,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,239,109.89 : 1,075,336,680.44 = 422,003,984.91 : x
  2. Step 2: Convert to fraction form
    779,239,109.89/1,075,336,680.44 = 422,003,984.91/x
  3. Step 3: Cross multiply
    779,239,109.89x = 1,075,336,680.44 × 422,003,984.91
  4. Step 4: Simplify right side
    779,239,109.89x = 453,796,364,260,230,464
  5. Step 5: Solve for x
    x = 453,796,364,260,230,464/779,239,109.89
  6. Step 6: Final answer
    x = 582,358,301.19

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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.