Home / 81,574,376-112,358,195.52-62,699,864

Finding the Fourth Proportional to 81,574,376, 112,358,195.52 and 62,699,864

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Solution

The fourth proportional to 81,574,376, 112,358,195.52 and 62,699,864 is: 86,360,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,574,376 : 112,358,195.52 = 62,699,864 : x
  2. Step 2: Convert to fraction form
    81,574,376/112,358,195.52 = 62,699,864/x
  3. Step 3: Cross multiply
    81,574,376x = 112,358,195.52 × 62,699,864
  4. Step 4: Simplify right side
    81,574,376x = 7,044,843,578,389,409
  5. Step 5: Solve for x
    x = 7,044,843,578,389,409/81,574,376
  6. Step 6: Final answer
    x = 86,360,986.43

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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.