Home / 790,566,215.46-1,090,981,480.74-438,164,957.34

Finding the Fourth Proportional to 790,566,215.46, 1,090,981,480.74 and 438,164,957.34

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Solution

The fourth proportional to 790,566,215.46, 1,090,981,480.74 and 438,164,957.34 is: 604,667,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,566,215.46 : 1,090,981,480.74 = 438,164,957.34 : x
  2. Step 2: Convert to fraction form
    790,566,215.46/1,090,981,480.74 = 438,164,957.34/x
  3. Step 3: Cross multiply
    790,566,215.46x = 1,090,981,480.74 × 438,164,957.34
  4. Step 4: Simplify right side
    790,566,215.46x = 478,029,853,967,172,096
  5. Step 5: Solve for x
    x = 478,029,853,967,172,096/790,566,215.46
  6. Step 6: Final answer
    x = 604,667,698.44

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Double scale
Find fourth proportional to 790,566,216.46, 1,090,981,482.12 and 438,164,958.34
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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.