Home / 193,584,123.89-267,146,129.40-105,478,121.57

Finding the Fourth Proportional to 193,584,123.89, 267,146,129.40 and 105,478,121.57

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Solution

The fourth proportional to 193,584,123.89, 267,146,129.40 and 105,478,121.57 is: 145,559,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,584,123.89 : 267,146,129.40 = 105,478,121.57 : x
  2. Step 2: Convert to fraction form
    193,584,123.89/267,146,129.40 = 105,478,121.57/x
  3. Step 3: Cross multiply
    193,584,123.89x = 267,146,129.40 × 105,478,121.57
  4. Step 4: Simplify right side
    193,584,123.89x = 28,178,071,912,472,420
  5. Step 5: Solve for x
    x = 28,178,071,912,472,420/193,584,123.89
  6. Step 6: Final answer
    x = 145,559,828.70

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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.