Home / 513,790,602.13-709,031,030.34-278,841,262.60

Finding the Fourth Proportional to 513,790,602.13, 709,031,030.34 and 278,841,262.60

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Solution

The fourth proportional to 513,790,602.13, 709,031,030.34 and 278,841,262.60 is: 384,800,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,790,602.13 : 709,031,030.34 = 278,841,262.60 : x
  2. Step 2: Convert to fraction form
    513,790,602.13/709,031,030.34 = 278,841,262.60/x
  3. Step 3: Cross multiply
    513,790,602.13x = 709,031,030.34 × 278,841,262.60
  4. Step 4: Simplify right side
    513,790,602.13x = 197,707,107,722,584,544
  5. Step 5: Solve for x
    x = 197,707,107,722,584,544/513,790,602.13
  6. Step 6: Final answer
    x = 384,800,942.06

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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.