Home / 81,612,110.40-122,134,730.40-56,102,942.40

Finding the Fourth Proportional to 81,612,110.40, 122,134,730.40 and 56,102,942.40

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Solution

The fourth proportional to 81,612,110.40, 122,134,730.40 and 56,102,942.40 is: 83,959,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,612,110.40 : 122,134,730.40 = 56,102,942.40 : x
  2. Step 2: Convert to fraction form
    81,612,110.40/122,134,730.40 = 56,102,942.40/x
  3. Step 3: Cross multiply
    81,612,110.40x = 122,134,730.40 × 56,102,942.40
  4. Step 4: Simplify right side
    81,612,110.40x = 6,852,117,744,670,729
  5. Step 5: Solve for x
    x = 6,852,117,744,670,729/81,612,110.40
  6. Step 6: Final answer
    x = 83,959,570.60

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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.