Home / 749,208,533.60-1,123,812,800.40-318,331,042.40

Finding the Fourth Proportional to 749,208,533.60, 1,123,812,800.40 and 318,331,042.40

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Solution

The fourth proportional to 749,208,533.60, 1,123,812,800.40 and 318,331,042.40 is: 477,496,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,208,533.60 : 1,123,812,800.40 = 318,331,042.40 : x
  2. Step 2: Convert to fraction form
    749,208,533.60/1,123,812,800.40 = 318,331,042.40/x
  3. Step 3: Cross multiply
    749,208,533.60x = 1,123,812,800.40 × 318,331,042.40
  4. Step 4: Simplify right side
    749,208,533.60x = 357,744,500,213,795,136
  5. Step 5: Solve for x
    x = 357,744,500,213,795,136/749,208,533.60
  6. Step 6: Final answer
    x = 477,496,563.60

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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.