Home / 30,676,832.34-42,349,369.23-19,078,132.38

Finding the Fourth Proportional to 30,676,832.34, 42,349,369.23 and 19,078,132.38

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Solution

The fourth proportional to 30,676,832.34, 42,349,369.23 and 19,078,132.38 is: 26,337,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676,832.34 : 42,349,369.23 = 19,078,132.38 : x
  2. Step 2: Convert to fraction form
    30,676,832.34/42,349,369.23 = 19,078,132.38/x
  3. Step 3: Cross multiply
    30,676,832.34x = 42,349,369.23 × 19,078,132.38
  4. Step 4: Simplify right side
    30,676,832.34x = 807,946,872,379,438.50
  5. Step 5: Solve for x
    x = 807,946,872,379,438.50/30,676,832.34
  6. Step 6: Final answer
    x = 26,337,363.11

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1.5x scale

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.