Home / 13,567,983.85-18,724,534.32-7,688,756.80

Finding the Fourth Proportional to 13,567,983.85, 18,724,534.32 and 7,688,756.80

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Solution

The fourth proportional to 13,567,983.85, 18,724,534.32 and 7,688,756.80 is: 10,610,890.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567,983.85 : 18,724,534.32 = 7,688,756.80 : x
  2. Step 2: Convert to fraction form
    13,567,983.85/18,724,534.32 = 7,688,756.80/x
  3. Step 3: Cross multiply
    13,567,983.85x = 18,724,534.32 × 7,688,756.80
  4. Step 4: Simplify right side
    13,567,983.85x = 143,968,390,579,733.38
  5. Step 5: Solve for x
    x = 143,968,390,579,733.38/13,567,983.85
  6. Step 6: Final answer
    x = 10,610,890.47

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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.