Home / 105,434,165.96-158,161,712.54-38,978,013.70

Finding the Fourth Proportional to 105,434,165.96, 158,161,712.54 and 38,978,013.70

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Solution

The fourth proportional to 105,434,165.96, 158,161,712.54 and 38,978,013.70 is: 58,470,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,434,165.96 : 158,161,712.54 = 38,978,013.70 : x
  2. Step 2: Convert to fraction form
    105,434,165.96/158,161,712.54 = 38,978,013.70/x
  3. Step 3: Cross multiply
    105,434,165.96x = 158,161,712.54 × 38,978,013.70
  4. Step 4: Simplify right side
    105,434,165.96x = 6,164,829,398,183,060
  5. Step 5: Solve for x
    x = 6,164,829,398,183,060/105,434,165.96
  6. Step 6: Final answer
    x = 58,470,888.84

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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.