Home / 20,828,342,592.90-28,742,623,881.03-12,255,324,516.54

Finding the Fourth Proportional to 20,828,342,592.90, 28,742,623,881.03 and 12,255,324,516.54

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Solution

The fourth proportional to 20,828,342,592.90, 28,742,623,881.03 and 12,255,324,516.54 is: 16,912,060,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,342,592.90 : 28,742,623,881.03 = 12,255,324,516.54 : x
  2. Step 2: Convert to fraction form
    20,828,342,592.90/28,742,623,881.03 = 12,255,324,516.54/x
  3. Step 3: Cross multiply
    20,828,342,592.90x = 28,742,623,881.03 × 12,255,324,516.54
  4. Step 4: Simplify right side
    20,828,342,592.90x = 352,250,183,118,875,066,368
  5. Step 5: Solve for x
    x = 352,250,183,118,875,066,368/20,828,342,592.90
  6. Step 6: Final answer
    x = 16,912,060,167.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.