Home / 864,537,379.76-1,296,806,256.74-311,839,762.35

Finding the Fourth Proportional to 864,537,379.76, 1,296,806,256.74 and 311,839,762.35

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Solution

The fourth proportional to 864,537,379.76, 1,296,806,256.74 and 311,839,762.35 is: 467,759,711.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,537,379.76 : 1,296,806,256.74 = 311,839,762.35 : x
  2. Step 2: Convert to fraction form
    864,537,379.76/1,296,806,256.74 = 311,839,762.35/x
  3. Step 3: Cross multiply
    864,537,379.76x = 1,296,806,256.74 × 311,839,762.35
  4. Step 4: Simplify right side
    864,537,379.76x = 404,395,754,921,437,312
  5. Step 5: Solve for x
    x = 404,395,754,921,437,312/864,537,379.76
  6. Step 6: Final answer
    x = 467,759,711.02

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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.