Home / 513,743,323.99-708,966,244.34-278,793,985.11

Finding the Fourth Proportional to 513,743,323.99, 708,966,244.34 and 278,793,985.11

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Solution

The fourth proportional to 513,743,323.99, 708,966,244.34 and 278,793,985.11 is: 384,735,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,743,323.99 : 708,966,244.34 = 278,793,985.11 : x
  2. Step 2: Convert to fraction form
    513,743,323.99/708,966,244.34 = 278,793,985.11/x
  3. Step 3: Cross multiply
    513,743,323.99x = 708,966,244.34 × 278,793,985.11
  4. Step 4: Simplify right side
    513,743,323.99x = 197,655,524,566,624,640
  5. Step 5: Solve for x
    x = 197,655,524,566,624,640/513,743,323.99
  6. Step 6: Final answer
    x = 384,735,947.58

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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.