Home / 143,838,308.22-198,448,294.03-81,914,802.90

Finding the Fourth Proportional to 143,838,308.22, 198,448,294.03 and 81,914,802.90

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Solution

The fourth proportional to 143,838,308.22, 198,448,294.03 and 81,914,802.90 is: 113,014,767.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,838,308.22 : 198,448,294.03 = 81,914,802.90 : x
  2. Step 2: Convert to fraction form
    143,838,308.22/198,448,294.03 = 81,914,802.90/x
  3. Step 3: Cross multiply
    143,838,308.22x = 198,448,294.03 × 81,914,802.90
  4. Step 4: Simplify right side
    143,838,308.22x = 16,255,852,891,308,698
  5. Step 5: Solve for x
    x = 16,255,852,891,308,698/143,838,308.22
  6. Step 6: Final answer
    x = 113,014,767.01

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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.