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Finding the Fourth Proportional to 6,412,802.40, 8,849,800.80 and 3,512,315.52

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Solution

The fourth proportional to 6,412,802.40, 8,849,800.80 and 3,512,315.52 is: 4,847,068.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412,802.40 : 8,849,800.80 = 3,512,315.52 : x
  2. Step 2: Convert to fraction form
    6,412,802.40/8,849,800.80 = 3,512,315.52/x
  3. Step 3: Cross multiply
    6,412,802.40x = 8,849,800.80 × 3,512,315.52
  4. Step 4: Simplify right side
    6,412,802.40x = 31,083,292,698,748.42
  5. Step 5: Solve for x
    x = 31,083,292,698,748.42/6,412,802.40
  6. Step 6: Final answer
    x = 4,847,068.53

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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.