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Finding the Fourth Proportional to 580,651,503.60, 870,977,255.40 and 290,413,858.80

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Solution

The fourth proportional to 580,651,503.60, 870,977,255.40 and 290,413,858.80 is: 435,620,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,651,503.60 : 870,977,255.40 = 290,413,858.80 : x
  2. Step 2: Convert to fraction form
    580,651,503.60/870,977,255.40 = 290,413,858.80/x
  3. Step 3: Cross multiply
    580,651,503.60x = 870,977,255.40 × 290,413,858.80
  4. Step 4: Simplify right side
    580,651,503.60x = 252,943,865,667,747,136
  5. Step 5: Solve for x
    x = 252,943,865,667,747,136/580,651,503.60
  6. Step 6: Final answer
    x = 435,620,788.20

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1.5x scale

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.