Home / 189,405,903.20-284,108,854.80-87,369,231.20

Finding the Fourth Proportional to 189,405,903.20, 284,108,854.80 and 87,369,231.20

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Solution

The fourth proportional to 189,405,903.20, 284,108,854.80 and 87,369,231.20 is: 131,053,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,405,903.20 : 284,108,854.80 = 87,369,231.20 : x
  2. Step 2: Convert to fraction form
    189,405,903.20/284,108,854.80 = 87,369,231.20/x
  3. Step 3: Cross multiply
    189,405,903.20x = 284,108,854.80 × 87,369,231.20
  4. Step 4: Simplify right side
    189,405,903.20x = 24,822,372,220,988,432
  5. Step 5: Solve for x
    x = 24,822,372,220,988,432/189,405,903.20
  6. Step 6: Final answer
    x = 131,053,846.80

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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.