Home / 7,128,429.40-10,692,644.10-1,809,645.40

Finding the Fourth Proportional to 7,128,429.40, 10,692,644.10 and 1,809,645.40

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Solution

The fourth proportional to 7,128,429.40, 10,692,644.10 and 1,809,645.40 is: 2,714,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,429.40 : 10,692,644.10 = 1,809,645.40 : x
  2. Step 2: Convert to fraction form
    7,128,429.40/10,692,644.10 = 1,809,645.40/x
  3. Step 3: Cross multiply
    7,128,429.40x = 10,692,644.10 × 1,809,645.40
  4. Step 4: Simplify right side
    7,128,429.40x = 19,349,894,209,402.14
  5. Step 5: Solve for x
    x = 19,349,894,209,402.14/7,128,429.40
  6. Step 6: Final answer
    x = 2,714,468.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.