Home / 99,513,102.80-149,336,009.40-45,632,680.40

Finding the Fourth Proportional to 99,513,102.80, 149,336,009.40 and 45,632,680.40

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Solution

The fourth proportional to 99,513,102.80, 149,336,009.40 and 45,632,680.40 is: 68,479,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,513,102.80 : 149,336,009.40 = 45,632,680.40 : x
  2. Step 2: Convert to fraction form
    99,513,102.80/149,336,009.40 = 45,632,680.40/x
  3. Step 3: Cross multiply
    99,513,102.80x = 149,336,009.40 × 45,632,680.40
  4. Step 4: Simplify right side
    99,513,102.80x = 6,814,602,389,161,596
  5. Step 5: Solve for x
    x = 6,814,602,389,161,596/99,513,102.80
  6. Step 6: Final answer
    x = 68,479,448.41

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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.