Home / 910,289,385.20-1,256,199,353.16-492,601,670.24

Finding the Fourth Proportional to 910,289,385.20, 1,256,199,353.16 and 492,601,670.24

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Solution

The fourth proportional to 910,289,385.20, 1,256,199,353.16 and 492,601,670.24 is: 679,790,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,289,385.20 : 1,256,199,353.16 = 492,601,670.24 : x
  2. Step 2: Convert to fraction form
    910,289,385.20/1,256,199,353.16 = 492,601,670.24/x
  3. Step 3: Cross multiply
    910,289,385.20x = 1,256,199,353.16 × 492,601,670.24
  4. Step 4: Simplify right side
    910,289,385.20x = 618,805,899,521,023,616
  5. Step 5: Solve for x
    x = 618,805,899,521,023,616/910,289,385.20
  6. Step 6: Final answer
    x = 679,790,305.79

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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.