Home / 910,289,383.30-1,256,199,350.35-492,601,668.45

Finding the Fourth Proportional to 910,289,383.30, 1,256,199,350.35 and 492,601,668.45

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Solution

The fourth proportional to 910,289,383.30, 1,256,199,350.35 and 492,601,668.45 is: 679,790,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,289,383.30 : 1,256,199,350.35 = 492,601,668.45 : x
  2. Step 2: Convert to fraction form
    910,289,383.30/1,256,199,350.35 = 492,601,668.45/x
  3. Step 3: Cross multiply
    910,289,383.30x = 1,256,199,350.35 × 492,601,668.45
  4. Step 4: Simplify right side
    910,289,383.30x = 618,805,895,879,472,128
  5. Step 5: Solve for x
    x = 618,805,895,879,472,128/910,289,383.30
  6. Step 6: Final answer
    x = 679,790,303.21

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Double scale
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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.