Home / 81,323,538.40-121,873,333.20-53,952,018.40

Finding the Fourth Proportional to 81,323,538.40, 121,873,333.20 and 53,952,018.40

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Solution

The fourth proportional to 81,323,538.40, 121,873,333.20 and 53,952,018.40 is: 80,853,741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,323,538.40 : 121,873,333.20 = 53,952,018.40 : x
  2. Step 2: Convert to fraction form
    81,323,538.40/121,873,333.20 = 53,952,018.40/x
  3. Step 3: Cross multiply
    81,323,538.40x = 121,873,333.20 × 53,952,018.40
  4. Step 4: Simplify right side
    81,323,538.40x = 6,575,312,315,275,731
  5. Step 5: Solve for x
    x = 6,575,312,315,275,731/81,323,538.40
  6. Step 6: Final answer
    x = 80,853,741.05

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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.