Home / 139,432,569.78-208,744,968.73-105,033,842.39

Finding the Fourth Proportional to 139,432,569.78, 208,744,968.73 and 105,033,842.39

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Solution

The fourth proportional to 139,432,569.78, 208,744,968.73 and 105,033,842.39 is: 157,246,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,432,569.78 : 208,744,968.73 = 105,033,842.39 : x
  2. Step 2: Convert to fraction form
    139,432,569.78/208,744,968.73 = 105,033,842.39/x
  3. Step 3: Cross multiply
    139,432,569.78x = 208,744,968.73 × 105,033,842.39
  4. Step 4: Simplify right side
    139,432,569.78x = 21,925,286,145,454,712
  5. Step 5: Solve for x
    x = 21,925,286,145,454,712/139,432,569.78
  6. Step 6: Final answer
    x = 157,246,518.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.