Home / 82,639,931.60-123,959,897.40-77,601,083.60

Finding the Fourth Proportional to 82,639,931.60, 123,959,897.40 and 77,601,083.60

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Solution

The fourth proportional to 82,639,931.60, 123,959,897.40 and 77,601,083.60 is: 116,401,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,639,931.60 : 123,959,897.40 = 77,601,083.60 : x
  2. Step 2: Convert to fraction form
    82,639,931.60/123,959,897.40 = 77,601,083.60/x
  3. Step 3: Cross multiply
    82,639,931.60x = 123,959,897.40 × 77,601,083.60
  4. Step 4: Simplify right side
    82,639,931.60x = 9,619,422,361,184,822
  5. Step 5: Solve for x
    x = 9,619,422,361,184,822/82,639,931.60
  6. Step 6: Final answer
    x = 116,401,625.40

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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.