Home / 168,392,818.50-252,589,237.47-40,742,002.50

Finding the Fourth Proportional to 168,392,818.50, 252,589,237.47 and 40,742,002.50

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Solution

The fourth proportional to 168,392,818.50, 252,589,237.47 and 40,742,002.50 is: 61,113,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,392,818.50 : 252,589,237.47 = 40,742,002.50 : x
  2. Step 2: Convert to fraction form
    168,392,818.50/252,589,237.47 = 40,742,002.50/x
  3. Step 3: Cross multiply
    168,392,818.50x = 252,589,237.47 × 40,742,002.50
  4. Step 4: Simplify right side
    168,392,818.50x = 10,290,991,344,475,834
  5. Step 5: Solve for x
    x = 10,290,991,344,475,834/168,392,818.50
  6. Step 6: Final answer
    x = 61,113,006.10

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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.