Home / 19,018,017.60-28,548,021.60-11,837,659.20

Finding the Fourth Proportional to 19,018,017.60, 28,548,021.60 and 11,837,659.20

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Solution

The fourth proportional to 19,018,017.60, 28,548,021.60 and 11,837,659.20 is: 17,769,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018,017.60 : 28,548,021.60 = 11,837,659.20 : x
  2. Step 2: Convert to fraction form
    19,018,017.60/28,548,021.60 = 11,837,659.20/x
  3. Step 3: Cross multiply
    19,018,017.60x = 28,548,021.60 × 11,837,659.20
  4. Step 4: Simplify right side
    19,018,017.60x = 337,941,750,535,038.69
  5. Step 5: Solve for x
    x = 337,941,750,535,038.69/19,018,017.60
  6. Step 6: Final answer
    x = 17,769,557.15

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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.