Home / 30,588,428.40-42,213,144.93-16,649,109.72

Finding the Fourth Proportional to 30,588,428.40, 42,213,144.93 and 16,649,109.72

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Solution

The fourth proportional to 30,588,428.40, 42,213,144.93 and 16,649,109.72 is: 22,976,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588,428.40 : 42,213,144.93 = 16,649,109.72 : x
  2. Step 2: Convert to fraction form
    30,588,428.40/42,213,144.93 = 16,649,109.72/x
  3. Step 3: Cross multiply
    30,588,428.40x = 42,213,144.93 × 16,649,109.72
  4. Step 4: Simplify right side
    30,588,428.40x = 702,811,281,565,831.75
  5. Step 5: Solve for x
    x = 702,811,281,565,831.75/30,588,428.40
  6. Step 6: Final answer
    x = 22,976,377.61

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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.