Home / 76,386,663.56-114,578,872.68-18,878,939.66

Finding the Fourth Proportional to 76,386,663.56, 114,578,872.68 and 18,878,939.66

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Solution

The fourth proportional to 76,386,663.56, 114,578,872.68 and 18,878,939.66 is: 28,318,132.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,386,663.56 : 114,578,872.68 = 18,878,939.66 : x
  2. Step 2: Convert to fraction form
    76,386,663.56/114,578,872.68 = 18,878,939.66/x
  3. Step 3: Cross multiply
    76,386,663.56x = 114,578,872.68 × 18,878,939.66
  4. Step 4: Simplify right side
    76,386,663.56x = 2,163,127,623,636,542.75
  5. Step 5: Solve for x
    x = 2,163,127,623,636,542.75/76,386,663.56
  6. Step 6: Final answer
    x = 28,318,132.02

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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.