Home / 30,676,866.84-42,349,416.84-19,078,166.88

Finding the Fourth Proportional to 30,676,866.84, 42,349,416.84 and 19,078,166.88

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Solution

The fourth proportional to 30,676,866.84, 42,349,416.84 and 19,078,166.88 is: 26,337,410.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676,866.84 : 42,349,416.84 = 19,078,166.88 : x
  2. Step 2: Convert to fraction form
    30,676,866.84/42,349,416.84 = 19,078,166.88/x
  3. Step 3: Cross multiply
    30,676,866.84x = 42,349,416.84 × 19,078,166.88
  4. Step 4: Simplify right side
    30,676,866.84x = 807,949,241,744,202.25
  5. Step 5: Solve for x
    x = 807,949,241,744,202.25/30,676,866.84
  6. Step 6: Final answer
    x = 26,337,410.73

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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.