Home / 78,254,469.06-117,385,478.58-25,730,977.65

Finding the Fourth Proportional to 78,254,469.06, 117,385,478.58 and 25,730,977.65

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Solution

The fourth proportional to 78,254,469.06, 117,385,478.58 and 25,730,977.65 is: 38,597,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,254,469.06 : 117,385,478.58 = 25,730,977.65 : x
  2. Step 2: Convert to fraction form
    78,254,469.06/117,385,478.58 = 25,730,977.65/x
  3. Step 3: Cross multiply
    78,254,469.06x = 117,385,478.58 × 25,730,977.65
  4. Step 4: Simplify right side
    78,254,469.06x = 3,020,443,125,776,533.50
  5. Step 5: Solve for x
    x = 3,020,443,125,776,533.50/78,254,469.06
  6. Step 6: Final answer
    x = 38,597,707.74

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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.