Home / 1,043,103,438.80-1,564,655,158.20-315,997,672.40

Finding the Fourth Proportional to 1,043,103,438.80, 1,564,655,158.20 and 315,997,672.40

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Solution

The fourth proportional to 1,043,103,438.80, 1,564,655,158.20 and 315,997,672.40 is: 473,996,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043,103,438.80 : 1,564,655,158.20 = 315,997,672.40 : x
  2. Step 2: Convert to fraction form
    1,043,103,438.80/1,564,655,158.20 = 315,997,672.40/x
  3. Step 3: Cross multiply
    1,043,103,438.80x = 1,564,655,158.20 × 315,997,672.40
  4. Step 4: Simplify right side
    1,043,103,438.80x = 494,427,388,099,853,760
  5. Step 5: Solve for x
    x = 494,427,388,099,853,760/1,043,103,438.80
  6. Step 6: Final answer
    x = 473,996,508.60

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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.