Home / 20,124,005.60-30,186,008.40-18,706,829.60

Finding the Fourth Proportional to 20,124,005.60, 30,186,008.40 and 18,706,829.60

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Solution

The fourth proportional to 20,124,005.60, 30,186,008.40 and 18,706,829.60 is: 28,060,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,005.60 : 30,186,008.40 = 18,706,829.60 : x
  2. Step 2: Convert to fraction form
    20,124,005.60/30,186,008.40 = 18,706,829.60/x
  3. Step 3: Cross multiply
    20,124,005.60x = 30,186,008.40 × 18,706,829.60
  4. Step 4: Simplify right side
    20,124,005.60x = 564,684,515,442,968.62
  5. Step 5: Solve for x
    x = 564,684,515,442,968.62/20,124,005.60
  6. Step 6: Final answer
    x = 28,060,244.40

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1.5x scale

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.