Home / 689,556,004.40-1,034,837,891.40-485,482,660.40

Finding the Fourth Proportional to 689,556,004.40, 1,034,837,891.40 and 485,482,660.40

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Solution

The fourth proportional to 689,556,004.40, 1,034,837,891.40 and 485,482,660.40 is: 728,578,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,556,004.40 : 1,034,837,891.40 = 485,482,660.40 : x
  2. Step 2: Convert to fraction form
    689,556,004.40/1,034,837,891.40 = 485,482,660.40/x
  3. Step 3: Cross multiply
    689,556,004.40x = 1,034,837,891.40 × 485,482,660.40
  4. Step 4: Simplify right side
    689,556,004.40x = 502,395,852,599,598,272
  5. Step 5: Solve for x
    x = 502,395,852,599,598,272/689,556,004.40
  6. Step 6: Final answer
    x = 728,578,751.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.