Home / 869,251,483.60-1,303,429,327.80-323,712,206.80

Finding the Fourth Proportional to 869,251,483.60, 1,303,429,327.80 and 323,712,206.80

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Solution

The fourth proportional to 869,251,483.60, 1,303,429,327.80 and 323,712,206.80 is: 485,401,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,251,483.60 : 1,303,429,327.80 = 323,712,206.80 : x
  2. Step 2: Convert to fraction form
    869,251,483.60/1,303,429,327.80 = 323,712,206.80/x
  3. Step 3: Cross multiply
    869,251,483.60x = 1,303,429,327.80 × 323,712,206.80
  4. Step 4: Simplify right side
    869,251,483.60x = 421,935,984,109,978,560
  5. Step 5: Solve for x
    x = 421,935,984,109,978,560/869,251,483.60
  6. Step 6: Final answer
    x = 485,401,511.61

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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.