Home / 869,251,609.60-1,303,429,516.80-323,712,332.80

Finding the Fourth Proportional to 869,251,609.60, 1,303,429,516.80 and 323,712,332.80

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Solution

The fourth proportional to 869,251,609.60, 1,303,429,516.80 and 323,712,332.80 is: 485,401,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,251,609.60 : 1,303,429,516.80 = 323,712,332.80 : x
  2. Step 2: Convert to fraction form
    869,251,609.60/1,303,429,516.80 = 323,712,332.80/x
  3. Step 3: Cross multiply
    869,251,609.60x = 1,303,429,516.80 × 323,712,332.80
  4. Step 4: Simplify right side
    869,251,609.60x = 421,936,209,523,704,768
  5. Step 5: Solve for x
    x = 421,936,209,523,704,768/869,251,609.60
  6. Step 6: Final answer
    x = 485,401,700.57

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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.