Home / 12,866,869.51-19,300,925-4,230,778.75

Finding the Fourth Proportional to 12,866,869.51, 19,300,925 and 4,230,778.75

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Solution

The fourth proportional to 12,866,869.51, 19,300,925 and 4,230,778.75 is: 6,346,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866,869.51 : 19,300,925 = 4,230,778.75 : x
  2. Step 2: Convert to fraction form
    12,866,869.51/19,300,925 = 4,230,778.75/x
  3. Step 3: Cross multiply
    12,866,869.51x = 19,300,925 × 4,230,778.75
  4. Step 4: Simplify right side
    12,866,869.51x = 81,657,943,345,343.75
  5. Step 5: Solve for x
    x = 81,657,943,345,343.75/12,866,869.51
  6. Step 6: Final answer
    x = 6,346,372.23

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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.