Home / 28,106,961,250.78-42,158,890,006.18-20,551,488,483.20

Finding the Fourth Proportional to 28,106,961,250.78, 42,158,890,006.18 and 20,551,488,483.20

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Solution

The fourth proportional to 28,106,961,250.78, 42,158,890,006.18 and 20,551,488,483.20 is: 30,826,098,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106,961,250.78 : 42,158,890,006.18 = 20,551,488,483.20 : x
  2. Step 2: Convert to fraction form
    28,106,961,250.78/42,158,890,006.18 = 20,551,488,483.20/x
  3. Step 3: Cross multiply
    28,106,961,250.78x = 42,158,890,006.18 × 20,551,488,483.20
  4. Step 4: Simplify right side
    28,106,961,250.78x = 866,427,942,426,503,938,048
  5. Step 5: Solve for x
    x = 866,427,942,426,503,938,048/28,106,961,250.78
  6. Step 6: Final answer
    x = 30,826,098,015.22

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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.