Home / 386,856,133.60-580,284,200.40-310,328,629.60

Finding the Fourth Proportional to 386,856,133.60, 580,284,200.40 and 310,328,629.60

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Solution

The fourth proportional to 386,856,133.60, 580,284,200.40 and 310,328,629.60 is: 465,492,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,856,133.60 : 580,284,200.40 = 310,328,629.60 : x
  2. Step 2: Convert to fraction form
    386,856,133.60/580,284,200.40 = 310,328,629.60/x
  3. Step 3: Cross multiply
    386,856,133.60x = 580,284,200.40 × 310,328,629.60
  4. Step 4: Simplify right side
    386,856,133.60x = 180,078,800,688,663,776
  5. Step 5: Solve for x
    x = 180,078,800,688,663,776/386,856,133.60
  6. Step 6: Final answer
    x = 465,492,944.40

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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.