Home / 12,866,871.15-19,300,927.41-4,230,780.39

Finding the Fourth Proportional to 12,866,871.15, 19,300,927.41 and 4,230,780.39

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Solution

The fourth proportional to 12,866,871.15, 19,300,927.41 and 4,230,780.39 is: 6,346,374.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866,871.15 : 19,300,927.41 = 4,230,780.39 : x
  2. Step 2: Convert to fraction form
    12,866,871.15/19,300,927.41 = 4,230,780.39/x
  3. Step 3: Cross multiply
    12,866,871.15x = 19,300,927.41 × 4,230,780.39
  4. Step 4: Simplify right side
    12,866,871.15x = 81,657,985,195,041.48
  5. Step 5: Solve for x
    x = 81,657,985,195,041.48/12,866,871.15
  6. Step 6: Final answer
    x = 6,346,374.67

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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.