Home / 13,688,948.36-18,890,749.10-7,577,376.86

Finding the Fourth Proportional to 13,688,948.36, 18,890,749.10 and 7,577,376.86

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Solution

The fourth proportional to 13,688,948.36, 18,890,749.10 and 7,577,376.86 is: 10,456,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688,948.36 : 18,890,749.10 = 7,577,376.86 : x
  2. Step 2: Convert to fraction form
    13,688,948.36/18,890,749.10 = 7,577,376.86/x
  3. Step 3: Cross multiply
    13,688,948.36x = 18,890,749.10 × 7,577,376.86
  4. Step 4: Simplify right side
    13,688,948.36x = 143,142,325,098,405.84
  5. Step 5: Solve for x
    x = 143,142,325,098,405.84/13,688,948.36
  6. Step 6: Final answer
    x = 10,456,780.27

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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.