Home / 38,216,342.90-52,738,186.12-20,812,978.76

Finding the Fourth Proportional to 38,216,342.90, 52,738,186.12 and 20,812,978.76

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Solution

The fourth proportional to 38,216,342.90, 52,738,186.12 and 20,812,978.76 is: 28,721,710.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,216,342.90 : 52,738,186.12 = 20,812,978.76 : x
  2. Step 2: Convert to fraction form
    38,216,342.90/52,738,186.12 = 20,812,978.76/x
  3. Step 3: Cross multiply
    38,216,342.90x = 52,738,186.12 × 20,812,978.76
  4. Step 4: Simplify right side
    38,216,342.90x = 1,097,638,747,240,763.38
  5. Step 5: Solve for x
    x = 1,097,638,747,240,763.38/38,216,342.90
  6. Step 6: Final answer
    x = 28,721,710.76

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1.5x scale

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.