Home / 86,289,631.23-119,078,981.71-47,131,434.50

Finding the Fourth Proportional to 86,289,631.23, 119,078,981.71 and 47,131,434.50

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Solution

The fourth proportional to 86,289,631.23, 119,078,981.71 and 47,131,434.50 is: 65,040,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,289,631.23 : 119,078,981.71 = 47,131,434.50 : x
  2. Step 2: Convert to fraction form
    86,289,631.23/119,078,981.71 = 47,131,434.50/x
  3. Step 3: Cross multiply
    86,289,631.23x = 119,078,981.71 × 47,131,434.50
  4. Step 4: Simplify right side
    86,289,631.23x = 5,612,363,226,971,431
  5. Step 5: Solve for x
    x = 5,612,363,226,971,431/86,289,631.23
  6. Step 6: Final answer
    x = 65,040,992.14

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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.