Home / 13,438,117.80-18,543,803.31-7,636,094.28

Finding the Fourth Proportional to 13,438,117.80, 18,543,803.31 and 7,636,094.28

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Solution

The fourth proportional to 13,438,117.80, 18,543,803.31 and 7,636,094.28 is: 10,537,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,117.80 : 18,543,803.31 = 7,636,094.28 : x
  2. Step 2: Convert to fraction form
    13,438,117.80/18,543,803.31 = 7,636,094.28/x
  3. Step 3: Cross multiply
    13,438,117.80x = 18,543,803.31 × 7,636,094.28
  4. Step 4: Simplify right side
    13,438,117.80x = 141,602,230,384,936.06
  5. Step 5: Solve for x
    x = 141,602,230,384,936.06/13,438,117.80
  6. Step 6: Final answer
    x = 10,537,355.94

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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.