Home / 228,583,252.23-315,471,056.57-128,138,818.47

Finding the Fourth Proportional to 228,583,252.23, 315,471,056.57 and 128,138,818.47

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Solution

The fourth proportional to 228,583,252.23, 315,471,056.57 and 128,138,818.47 is: 176,846,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,583,252.23 : 315,471,056.57 = 128,138,818.47 : x
  2. Step 2: Convert to fraction form
    228,583,252.23/315,471,056.57 = 128,138,818.47/x
  3. Step 3: Cross multiply
    228,583,252.23x = 315,471,056.57 × 128,138,818.47
  4. Step 4: Simplify right side
    228,583,252.23x = 40,424,088,449,721,640
  5. Step 5: Solve for x
    x = 40,424,088,449,721,640/228,583,252.23
  6. Step 6: Final answer
    x = 176,846,238.98

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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.