Home / 618,098,688,099.20-927,148,032,148.80-518,919,042,915.20

Finding the Fourth Proportional to 618,098,688,099.20, 927,148,032,148.80 and 518,919,042,915.20

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Solution

The fourth proportional to 618,098,688,099.20, 927,148,032,148.80 and 518,919,042,915.20 is: 778,378,564,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,098,688,099.20 : 927,148,032,148.80 = 518,919,042,915.20 : x
  2. Step 2: Convert to fraction form
    618,098,688,099.20/927,148,032,148.80 = 518,919,042,915.20/x
  3. Step 3: Cross multiply
    618,098,688,099.20x = 927,148,032,148.80 × 518,919,042,915.20
  4. Step 4: Simplify right side
    618,098,688,099.20x = 481,114,769,483,366,400,000,000
  5. Step 5: Solve for x
    x = 481,114,769,483,366,400,000,000/618,098,688,099.20
  6. Step 6: Final answer
    x = 778,378,564,372.80

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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.