Home / 11,688,688.80-16,119,946.08-7,338,180.42

Finding the Fourth Proportional to 11,688,688.80, 16,119,946.08 and 7,338,180.42

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Solution

The fourth proportional to 11,688,688.80, 16,119,946.08 and 7,338,180.42 is: 10,120,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688,688.80 : 16,119,946.08 = 7,338,180.42 : x
  2. Step 2: Convert to fraction form
    11,688,688.80/16,119,946.08 = 7,338,180.42/x
  3. Step 3: Cross multiply
    11,688,688.80x = 16,119,946.08 × 7,338,180.42
  4. Step 4: Simplify right side
    11,688,688.80x = 118,291,072,695,711.75
  5. Step 5: Solve for x
    x = 118,291,072,695,711.75/11,688,688.80
  6. Step 6: Final answer
    x = 10,120,131.93

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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.