Home / 457,127,878.29-630,833,004.80-248,285,515.61

Finding the Fourth Proportional to 457,127,878.29, 630,833,004.80 and 248,285,515.61

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Solution

The fourth proportional to 457,127,878.29, 630,833,004.80 and 248,285,515.61 is: 342,632,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,127,878.29 : 630,833,004.80 = 248,285,515.61 : x
  2. Step 2: Convert to fraction form
    457,127,878.29/630,833,004.80 = 248,285,515.61/x
  3. Step 3: Cross multiply
    457,127,878.29x = 630,833,004.80 × 248,285,515.61
  4. Step 4: Simplify right side
    457,127,878.29x = 156,626,697,856,177,984
  5. Step 5: Solve for x
    x = 156,626,697,856,177,984/457,127,878.29
  6. Step 6: Final answer
    x = 342,632,128.33

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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.