Home / 1,318,595,903.10-1,977,893,854.65-398,614,232.70

Finding the Fourth Proportional to 1,318,595,903.10, 1,977,893,854.65 and 398,614,232.70

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Solution

The fourth proportional to 1,318,595,903.10, 1,977,893,854.65 and 398,614,232.70 is: 597,921,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,595,903.10 : 1,977,893,854.65 = 398,614,232.70 : x
  2. Step 2: Convert to fraction form
    1,318,595,903.10/1,977,893,854.65 = 398,614,232.70/x
  3. Step 3: Cross multiply
    1,318,595,903.10x = 1,977,893,854.65 × 398,614,232.70
  4. Step 4: Simplify right side
    1,318,595,903.10x = 788,416,641,233,355,136
  5. Step 5: Solve for x
    x = 788,416,641,233,355,136/1,318,595,903.10
  6. Step 6: Final answer
    x = 597,921,349.05

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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.