Home / 139,643,254.63-192,700,568.99-76,918,002.29

Finding the Fourth Proportional to 139,643,254.63, 192,700,568.99 and 76,918,002.29

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Solution

The fourth proportional to 139,643,254.63, 192,700,568.99 and 76,918,002.29 is: 106,142,920.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,643,254.63 : 192,700,568.99 = 76,918,002.29 : x
  2. Step 2: Convert to fraction form
    139,643,254.63/192,700,568.99 = 76,918,002.29/x
  3. Step 3: Cross multiply
    139,643,254.63x = 192,700,568.99 × 76,918,002.29
  4. Step 4: Simplify right side
    139,643,254.63x = 14,822,142,806,085,916
  5. Step 5: Solve for x
    x = 14,822,142,806,085,916/139,643,254.63
  6. Step 6: Final answer
    x = 106,142,920.01

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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.