Home / 81,139,498.56-121,683,528-26,539,459.20

Finding the Fourth Proportional to 81,139,498.56, 121,683,528 and 26,539,459.20

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Solution

The fourth proportional to 81,139,498.56, 121,683,528 and 26,539,459.20 is: 39,800,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,139,498.56 : 121,683,528 = 26,539,459.20 : x
  2. Step 2: Convert to fraction form
    81,139,498.56/121,683,528 = 26,539,459.20/x
  3. Step 3: Cross multiply
    81,139,498.56x = 121,683,528 × 26,539,459.20
  4. Step 4: Simplify right side
    81,139,498.56x = 3,229,415,026,668,057.50
  5. Step 5: Solve for x
    x = 3,229,415,026,668,057.50/81,139,498.56
  6. Step 6: Final answer
    x = 39,800,776.24

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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.