Home / 910,289,383.20-1,256,199,350.40-492,601,668.30

Finding the Fourth Proportional to 910,289,383.20, 1,256,199,350.40 and 492,601,668.30

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Solution

The fourth proportional to 910,289,383.20, 1,256,199,350.40 and 492,601,668.30 is: 679,790,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,289,383.20 : 1,256,199,350.40 = 492,601,668.30 : x
  2. Step 2: Convert to fraction form
    910,289,383.20/1,256,199,350.40 = 492,601,668.30/x
  3. Step 3: Cross multiply
    910,289,383.20x = 1,256,199,350.40 × 492,601,668.30
  4. Step 4: Simplify right side
    910,289,383.20x = 618,805,895,724,416,384
  5. Step 5: Solve for x
    x = 618,805,895,724,416,384/910,289,383.20
  6. Step 6: Final answer
    x = 679,790,303.11

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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.