Home / 399,450,693.90-551,258,981.70-223,238,684.06

Finding the Fourth Proportional to 399,450,693.90, 551,258,981.70 and 223,238,684.06

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Solution

The fourth proportional to 399,450,693.90, 551,258,981.70 and 223,238,684.06 is: 308,078,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,450,693.90 : 551,258,981.70 = 223,238,684.06 : x
  2. Step 2: Convert to fraction form
    399,450,693.90/551,258,981.70 = 223,238,684.06/x
  3. Step 3: Cross multiply
    399,450,693.90x = 551,258,981.70 × 223,238,684.06
  4. Step 4: Simplify right side
    399,450,693.90x = 123,062,329,650,963,632
  5. Step 5: Solve for x
    x = 123,062,329,650,963,632/399,450,693.90
  6. Step 6: Final answer
    x = 308,078,898.17

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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.