Home / 105,088,008.40-157,632,012.60-68,808,302.80

Finding the Fourth Proportional to 105,088,008.40, 157,632,012.60 and 68,808,302.80

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Solution

The fourth proportional to 105,088,008.40, 157,632,012.60 and 68,808,302.80 is: 103,212,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,088,008.40 : 157,632,012.60 = 68,808,302.80 : x
  2. Step 2: Convert to fraction form
    105,088,008.40/157,632,012.60 = 68,808,302.80/x
  3. Step 3: Cross multiply
    105,088,008.40x = 157,632,012.60 × 68,808,302.80
  4. Step 4: Simplify right side
    105,088,008.40x = 10,846,391,253,954,214
  5. Step 5: Solve for x
    x = 10,846,391,253,954,214/105,088,008.40
  6. Step 6: Final answer
    x = 103,212,454.20

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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.