Home / 645,722,592.04-891,115,995.78-352,386,054.44

Finding the Fourth Proportional to 645,722,592.04, 891,115,995.78 and 352,386,054.44

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Solution

The fourth proportional to 645,722,592.04, 891,115,995.78 and 352,386,054.44 is: 486,303,024.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,722,592.04 : 891,115,995.78 = 352,386,054.44 : x
  2. Step 2: Convert to fraction form
    645,722,592.04/891,115,995.78 = 352,386,054.44/x
  3. Step 3: Cross multiply
    645,722,592.04x = 891,115,995.78 × 352,386,054.44
  4. Step 4: Simplify right side
    645,722,592.04x = 314,016,849,801,285,888
  5. Step 5: Solve for x
    x = 314,016,849,801,285,888/645,722,592.04
  6. Step 6: Final answer
    x = 486,303,024.97

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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.