Home / 513,468,159.18-708,585,333.32-278,518,535.98

Finding the Fourth Proportional to 513,468,159.18, 708,585,333.32 and 278,518,535.98

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Solution

The fourth proportional to 513,468,159.18, 708,585,333.32 and 278,518,535.98 is: 384,355,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,468,159.18 : 708,585,333.32 = 278,518,535.98 : x
  2. Step 2: Convert to fraction form
    513,468,159.18/708,585,333.32 = 278,518,535.98/x
  3. Step 3: Cross multiply
    513,468,159.18x = 708,585,333.32 × 278,518,535.98
  4. Step 4: Simplify right side
    513,468,159.18x = 197,354,149,653,186,752
  5. Step 5: Solve for x
    x = 197,354,149,653,186,752/513,468,159.18
  6. Step 6: Final answer
    x = 384,355,185.66

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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.