Home / 8,688,051.90-11,989,328.40-4,820,489.82

Finding the Fourth Proportional to 8,688,051.90, 11,989,328.40 and 4,820,489.82

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Solution

The fourth proportional to 8,688,051.90, 11,989,328.40 and 4,820,489.82 is: 6,652,174.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,051.90 : 11,989,328.40 = 4,820,489.82 : x
  2. Step 2: Convert to fraction form
    8,688,051.90/11,989,328.40 = 4,820,489.82/x
  3. Step 3: Cross multiply
    8,688,051.90x = 11,989,328.40 × 4,820,489.82
  4. Step 4: Simplify right side
    8,688,051.90x = 57,794,435,500,836.89
  5. Step 5: Solve for x
    x = 57,794,435,500,836.89/8,688,051.90
  6. Step 6: Final answer
    x = 6,652,174.29

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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.