Home / 139,169,681.91-192,042,960.90-80,436,151.19

Finding the Fourth Proportional to 139,169,681.91, 192,042,960.90 and 80,436,151.19

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Solution

The fourth proportional to 139,169,681.91, 192,042,960.90 and 80,436,151.19 is: 110,995,415.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,169,681.91 : 192,042,960.90 = 80,436,151.19 : x
  2. Step 2: Convert to fraction form
    139,169,681.91/192,042,960.90 = 80,436,151.19/x
  3. Step 3: Cross multiply
    139,169,681.91x = 192,042,960.90 × 80,436,151.19
  4. Step 4: Simplify right side
    139,169,681.91x = 15,447,196,637,927,658
  5. Step 5: Solve for x
    x = 15,447,196,637,927,658/139,169,681.91
  6. Step 6: Final answer
    x = 110,995,415.28

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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.