Home / 66,054,115-91,149,345.18-38,178,631

Finding the Fourth Proportional to 66,054,115, 91,149,345.18 and 38,178,631

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Solution

The fourth proportional to 66,054,115, 91,149,345.18 and 38,178,631 is: 52,683,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054,115 : 91,149,345.18 = 38,178,631 : x
  2. Step 2: Convert to fraction form
    66,054,115/91,149,345.18 = 38,178,631/x
  3. Step 3: Cross multiply
    66,054,115x = 91,149,345.18 × 38,178,631
  4. Step 4: Simplify right side
    66,054,115x = 3,479,957,215,518,849
  5. Step 5: Solve for x
    x = 3,479,957,215,518,849/66,054,115
  6. Step 6: Final answer
    x = 52,683,428.06

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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.