Home / 79,285,827.76-118,928,511.32-21,778,154.08

Finding the Fourth Proportional to 79,285,827.76, 118,928,511.32 and 21,778,154.08

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Solution

The fourth proportional to 79,285,827.76, 118,928,511.32 and 21,778,154.08 is: 32,667,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285,827.76 : 118,928,511.32 = 21,778,154.08 : x
  2. Step 2: Convert to fraction form
    79,285,827.76/118,928,511.32 = 21,778,154.08/x
  3. Step 3: Cross multiply
    79,285,827.76x = 118,928,511.32 × 21,778,154.08
  4. Step 4: Simplify right side
    79,285,827.76x = 2,590,043,444,031,984
  5. Step 5: Solve for x
    x = 2,590,043,444,031,984/79,285,827.76
  6. Step 6: Final answer
    x = 32,667,167.86

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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.