Home / 280,451,731.81-420,686,167.89-96,216,623.62

Finding the Fourth Proportional to 280,451,731.81, 420,686,167.89 and 96,216,623.62

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Solution

The fourth proportional to 280,451,731.81, 420,686,167.89 and 96,216,623.62 is: 144,327,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,451,731.81 : 420,686,167.89 = 96,216,623.62 : x
  2. Step 2: Convert to fraction form
    280,451,731.81/420,686,167.89 = 96,216,623.62/x
  3. Step 3: Cross multiply
    280,451,731.81x = 420,686,167.89 × 96,216,623.62
  4. Step 4: Simplify right side
    280,451,731.81x = 40,477,002,678,012,264
  5. Step 5: Solve for x
    x = 40,477,002,678,012,264/280,451,731.81
  6. Step 6: Final answer
    x = 144,327,875.66

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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.