Home / 720,296,930.90-993,626,331-438,125,674.74

Finding the Fourth Proportional to 720,296,930.90, 993,626,331 and 438,125,674.74

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Solution

The fourth proportional to 720,296,930.90, 993,626,331 and 438,125,674.74 is: 604,380,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,296,930.90 : 993,626,331 = 438,125,674.74 : x
  2. Step 2: Convert to fraction form
    720,296,930.90/993,626,331 = 438,125,674.74/x
  3. Step 3: Cross multiply
    720,296,930.90x = 993,626,331 × 438,125,674.74
  4. Step 4: Simplify right side
    720,296,930.90x = 435,333,206,708,805,568
  5. Step 5: Solve for x
    x = 435,333,206,708,805,568/720,296,930.90
  6. Step 6: Final answer
    x = 604,380,204.93

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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.