Home / 279,301,956.93-385,409,106.59-155,554,148.61

Finding the Fourth Proportional to 279,301,956.93, 385,409,106.59 and 155,554,148.61

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Solution

The fourth proportional to 279,301,956.93, 385,409,106.59 and 155,554,148.61 is: 214,649,356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,301,956.93 : 385,409,106.59 = 155,554,148.61 : x
  2. Step 2: Convert to fraction form
    279,301,956.93/385,409,106.59 = 155,554,148.61/x
  3. Step 3: Cross multiply
    279,301,956.93x = 385,409,106.59 × 155,554,148.61
  4. Step 4: Simplify right side
    279,301,956.93x = 59,951,985,441,370,424
  5. Step 5: Solve for x
    x = 59,951,985,441,370,424/279,301,956.93
  6. Step 6: Final answer
    x = 214,649,356.92

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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.