Home / 513,790,603.13-709,031,031.72-278,841,263.60

Finding the Fourth Proportional to 513,790,603.13, 709,031,031.72 and 278,841,263.60

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Solution

The fourth proportional to 513,790,603.13, 709,031,031.72 and 278,841,263.60 is: 384,800,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,790,603.13 : 709,031,031.72 = 278,841,263.60 : x
  2. Step 2: Convert to fraction form
    513,790,603.13/709,031,031.72 = 278,841,263.60/x
  3. Step 3: Cross multiply
    513,790,603.13x = 709,031,031.72 × 278,841,263.60
  4. Step 4: Simplify right side
    513,790,603.13x = 197,707,108,816,416,512
  5. Step 5: Solve for x
    x = 197,707,108,816,416,512/513,790,603.13
  6. Step 6: Final answer
    x = 384,800,943.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.