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Finding the Fourth Proportional to 869,258,603.60, 1,303,440,007.80 and 323,719,326.80

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Solution

The fourth proportional to 869,258,603.60, 1,303,440,007.80 and 323,719,326.80 is: 485,412,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,258,603.60 : 1,303,440,007.80 = 323,719,326.80 : x
  2. Step 2: Convert to fraction form
    869,258,603.60/1,303,440,007.80 = 323,719,326.80/x
  3. Step 3: Cross multiply
    869,258,603.60x = 1,303,440,007.80 × 323,719,326.80
  4. Step 4: Simplify right side
    869,258,603.60x = 421,948,721,849,202,752
  5. Step 5: Solve for x
    x = 421,948,721,849,202,752/869,258,603.60
  6. Step 6: Final answer
    x = 485,412,189.31

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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.