Home / 52,488,941.40-78,696,087.30-20,128,339.80

Finding the Fourth Proportional to 52,488,941.40, 78,696,087.30 and 20,128,339.80

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Solution

The fourth proportional to 52,488,941.40, 78,696,087.30 and 20,128,339.80 is: 30,178,196.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,488,941.40 : 78,696,087.30 = 20,128,339.80 : x
  2. Step 2: Convert to fraction form
    52,488,941.40/78,696,087.30 = 20,128,339.80/x
  3. Step 3: Cross multiply
    52,488,941.40x = 78,696,087.30 × 20,128,339.80
  4. Step 4: Simplify right side
    52,488,941.40x = 1,584,021,586,104,864.50
  5. Step 5: Solve for x
    x = 1,584,021,586,104,864.50/52,488,941.40
  6. Step 6: Final answer
    x = 30,178,196.47

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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.