Home / 11,870,478.90-16,381,289.79-6,437,970.90

Finding the Fourth Proportional to 11,870,478.90, 16,381,289.79 and 6,437,970.90

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Solution

The fourth proportional to 11,870,478.90, 16,381,289.79 and 6,437,970.90 is: 8,884,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870,478.90 : 16,381,289.79 = 6,437,970.90 : x
  2. Step 2: Convert to fraction form
    11,870,478.90/16,381,289.79 = 6,437,970.90/x
  3. Step 3: Cross multiply
    11,870,478.90x = 16,381,289.79 × 6,437,970.90
  4. Step 4: Simplify right side
    11,870,478.90x = 105,462,266,972,487.11
  5. Step 5: Solve for x
    x = 105,462,266,972,487.11/11,870,478.90
  6. Step 6: Final answer
    x = 8,884,415.52

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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.