Home / 79,340,786.76-118,956,848.67-40,403,867.96

Finding the Fourth Proportional to 79,340,786.76, 118,956,848.67 and 40,403,867.96

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Solution

The fourth proportional to 79,340,786.76, 118,956,848.67 and 40,403,867.96 is: 60,578,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,340,786.76 : 118,956,848.67 = 40,403,867.96 : x
  2. Step 2: Convert to fraction form
    79,340,786.76/118,956,848.67 = 40,403,867.96/x
  3. Step 3: Cross multiply
    79,340,786.76x = 118,956,848.67 × 40,403,867.96
  4. Step 4: Simplify right side
    79,340,786.76x = 4,806,316,806,600,382
  5. Step 5: Solve for x
    x = 4,806,316,806,600,382/79,340,786.76
  6. Step 6: Final answer
    x = 60,578,133.93

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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.