Home / 518,275,605.15-776,816,210.93-211,366,216.35

Finding the Fourth Proportional to 518,275,605.15, 776,816,210.93 and 211,366,216.35

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Solution

The fourth proportional to 518,275,605.15, 776,816,210.93 and 211,366,216.35 is: 316,805,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,275,605.15 : 776,816,210.93 = 211,366,216.35 : x
  2. Step 2: Convert to fraction form
    518,275,605.15/776,816,210.93 = 211,366,216.35/x
  3. Step 3: Cross multiply
    518,275,605.15x = 776,816,210.93 × 211,366,216.35
  4. Step 4: Simplify right side
    518,275,605.15x = 164,192,703,302,560,768
  5. Step 5: Solve for x
    x = 164,192,703,302,560,768/518,275,605.15
  6. Step 6: Final answer
    x = 316,805,772.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.