Home / 10,123,941,378.78-15,180,376,113.27-8,038,812,021.90

Finding the Fourth Proportional to 10,123,941,378.78, 15,180,376,113.27 and 8,038,812,021.90

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Solution

The fourth proportional to 10,123,941,378.78, 15,180,376,113.27 and 8,038,812,021.90 is: 12,053,822,264.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123,941,378.78 : 15,180,376,113.27 = 8,038,812,021.90 : x
  2. Step 2: Convert to fraction form
    10,123,941,378.78/15,180,376,113.27 = 8,038,812,021.90/x
  3. Step 3: Cross multiply
    10,123,941,378.78x = 15,180,376,113.27 × 8,038,812,021.90
  4. Step 4: Simplify right side
    10,123,941,378.78x = 122,032,189,996,318,474,240
  5. Step 5: Solve for x
    x = 122,032,189,996,318,474,240/10,123,941,378.78
  6. Step 6: Final answer
    x = 12,053,822,264.53

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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.