Home / 437,814,841.60-656,289,110.40-207,378,899.20

Finding the Fourth Proportional to 437,814,841.60, 656,289,110.40 and 207,378,899.20

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Solution

The fourth proportional to 437,814,841.60, 656,289,110.40 and 207,378,899.20 is: 310,863,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,814,841.60 : 656,289,110.40 = 207,378,899.20 : x
  2. Step 2: Convert to fraction form
    437,814,841.60/656,289,110.40 = 207,378,899.20/x
  3. Step 3: Cross multiply
    437,814,841.60x = 656,289,110.40 × 207,378,899.20
  4. Step 4: Simplify right side
    437,814,841.60x = 136,100,513,271,699,264
  5. Step 5: Solve for x
    x = 136,100,513,271,699,264/437,814,841.60
  6. Step 6: Final answer
    x = 310,863,178.54

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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.