Home / 520,620,533.06-780,935,376.64-132,443,775.14

Finding the Fourth Proportional to 520,620,533.06, 780,935,376.64 and 132,443,775.14

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Solution

The fourth proportional to 520,620,533.06, 780,935,376.64 and 132,443,775.14 is: 198,666,827.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,620,533.06 : 780,935,376.64 = 132,443,775.14 : x
  2. Step 2: Convert to fraction form
    520,620,533.06/780,935,376.64 = 132,443,775.14/x
  3. Step 3: Cross multiply
    520,620,533.06x = 780,935,376.64 × 132,443,775.14
  4. Step 4: Simplify right side
    520,620,533.06x = 103,430,029,422,579,360
  5. Step 5: Solve for x
    x = 103,430,029,422,579,360/520,620,533.06
  6. Step 6: Final answer
    x = 198,666,827.09

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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.