Home / 813,564,049.60-1,220,346,074.40-260,865,409.60

Finding the Fourth Proportional to 813,564,049.60, 1,220,346,074.40 and 260,865,409.60

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Solution

The fourth proportional to 813,564,049.60, 1,220,346,074.40 and 260,865,409.60 is: 391,298,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,564,049.60 : 1,220,346,074.40 = 260,865,409.60 : x
  2. Step 2: Convert to fraction form
    813,564,049.60/1,220,346,074.40 = 260,865,409.60/x
  3. Step 3: Cross multiply
    813,564,049.60x = 1,220,346,074.40 × 260,865,409.60
  4. Step 4: Simplify right side
    813,564,049.60x = 318,346,078,552,108,096
  5. Step 5: Solve for x
    x = 318,346,078,552,108,096/813,564,049.60
  6. Step 6: Final answer
    x = 391,298,114.40

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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.