Home / 419,177,715.12-578,467,523.36-240,547,380.40

Finding the Fourth Proportional to 419,177,715.12, 578,467,523.36 and 240,547,380.40

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Solution

The fourth proportional to 419,177,715.12, 578,467,523.36 and 240,547,380.40 is: 331,956,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,177,715.12 : 578,467,523.36 = 240,547,380.40 : x
  2. Step 2: Convert to fraction form
    419,177,715.12/578,467,523.36 = 240,547,380.40/x
  3. Step 3: Cross multiply
    419,177,715.12x = 578,467,523.36 × 240,547,380.40
  4. Step 4: Simplify right side
    419,177,715.12x = 139,148,847,390,723,808
  5. Step 5: Solve for x
    x = 139,148,847,390,723,808/419,177,715.12
  6. Step 6: Final answer
    x = 331,956,691.33

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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.