Home / 81,590,930.40-122,386,395.60-70,962,110.40

Finding the Fourth Proportional to 81,590,930.40, 122,386,395.60 and 70,962,110.40

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Solution

The fourth proportional to 81,590,930.40, 122,386,395.60 and 70,962,110.40 is: 106,443,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,590,930.40 : 122,386,395.60 = 70,962,110.40 : x
  2. Step 2: Convert to fraction form
    81,590,930.40/122,386,395.60 = 70,962,110.40/x
  3. Step 3: Cross multiply
    81,590,930.40x = 122,386,395.60 × 70,962,110.40
  4. Step 4: Simplify right side
    81,590,930.40x = 8,684,796,916,025,275
  5. Step 5: Solve for x
    x = 8,684,796,916,025,275/81,590,930.40
  6. Step 6: Final answer
    x = 106,443,165.60

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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.