Home / 513,468,200.76-708,585,390.48-278,518,577.52

Finding the Fourth Proportional to 513,468,200.76, 708,585,390.48 and 278,518,577.52

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Solution

The fourth proportional to 513,468,200.76, 708,585,390.48 and 278,518,577.52 is: 384,355,242.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,468,200.76 : 708,585,390.48 = 278,518,577.52 : x
  2. Step 2: Convert to fraction form
    513,468,200.76/708,585,390.48 = 278,518,577.52/x
  3. Step 3: Cross multiply
    513,468,200.76x = 708,585,390.48 × 278,518,577.52
  4. Step 4: Simplify right side
    513,468,200.76x = 197,354,195,007,943,328
  5. Step 5: Solve for x
    x = 197,354,195,007,943,328/513,468,200.76
  6. Step 6: Final answer
    x = 384,355,242.87

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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.