Home / 20,124,005.35-30,186,008.03-18,706,829.35

Finding the Fourth Proportional to 20,124,005.35, 30,186,008.03 and 18,706,829.35

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Solution

The fourth proportional to 20,124,005.35, 30,186,008.03 and 18,706,829.35 is: 28,060,244.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,005.35 : 30,186,008.03 = 18,706,829.35 : x
  2. Step 2: Convert to fraction form
    20,124,005.35/30,186,008.03 = 18,706,829.35/x
  3. Step 3: Cross multiply
    20,124,005.35x = 30,186,008.03 × 18,706,829.35
  4. Step 4: Simplify right side
    20,124,005.35x = 564,684,500,881,405.50
  5. Step 5: Solve for x
    x = 564,684,500,881,405.50/20,124,005.35
  6. Step 6: Final answer
    x = 28,060,244.03

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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.