Home / 253,465,115-349,721,883.06-143,456,831.24

Finding the Fourth Proportional to 253,465,115, 349,721,883.06 and 143,456,831.24

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Solution

The fourth proportional to 253,465,115, 349,721,883.06 and 143,456,831.24 is: 197,936,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,465,115 : 349,721,883.06 = 143,456,831.24 : x
  2. Step 2: Convert to fraction form
    253,465,115/349,721,883.06 = 143,456,831.24/x
  3. Step 3: Cross multiply
    253,465,115x = 349,721,883.06 × 143,456,831.24
  4. Step 4: Simplify right side
    253,465,115x = 50,169,993,159,073,440
  5. Step 5: Solve for x
    x = 50,169,993,159,073,440/253,465,115
  6. Step 6: Final answer
    x = 197,936,481.95

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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.