Home / 618,098,688,090.45-927,148,032,135.67-518,919,042,906.45

Finding the Fourth Proportional to 618,098,688,090.45, 927,148,032,135.67 and 518,919,042,906.45

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Solution

The fourth proportional to 618,098,688,090.45, 927,148,032,135.67 and 518,919,042,906.45 is: 778,378,564,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,098,688,090.45 : 927,148,032,135.67 = 518,919,042,906.45 : x
  2. Step 2: Convert to fraction form
    618,098,688,090.45/927,148,032,135.67 = 518,919,042,906.45/x
  3. Step 3: Cross multiply
    618,098,688,090.45x = 927,148,032,135.67 × 518,919,042,906.45
  4. Step 4: Simplify right side
    618,098,688,090.45x = 481,114,769,468,440,449,122,304
  5. Step 5: Solve for x
    x = 481,114,769,468,440,449,122,304/618,098,688,090.45
  6. Step 6: Final answer
    x = 778,378,564,359.67

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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.