Home / 10,938,521.40-15,095,532.78-6,866,385.72

Finding the Fourth Proportional to 10,938,521.40, 15,095,532.78 and 6,866,385.72

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Solution

The fourth proportional to 10,938,521.40, 15,095,532.78 and 6,866,385.72 is: 9,475,846.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938,521.40 : 15,095,532.78 = 6,866,385.72 : x
  2. Step 2: Convert to fraction form
    10,938,521.40/15,095,532.78 = 6,866,385.72/x
  3. Step 3: Cross multiply
    10,938,521.40x = 15,095,532.78 × 6,866,385.72
  4. Step 4: Simplify right side
    10,938,521.40x = 103,651,750,716,383.89
  5. Step 5: Solve for x
    x = 103,651,750,716,383.89/10,938,521.40
  6. Step 6: Final answer
    x = 9,475,846.59

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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.