Home / 139,271,017.43-192,195,746.24-76,553,962.80

Finding the Fourth Proportional to 139,271,017.43, 192,195,746.24 and 76,553,962.80

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Solution

The fourth proportional to 139,271,017.43, 192,195,746.24 and 76,553,962.80 is: 105,645,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,271,017.43 : 192,195,746.24 = 76,553,962.80 : x
  2. Step 2: Convert to fraction form
    139,271,017.43/192,195,746.24 = 76,553,962.80/x
  3. Step 3: Cross multiply
    139,271,017.43x = 192,195,746.24 × 76,553,962.80
  4. Step 4: Simplify right side
    139,271,017.43x = 14,713,346,007,592,430
  5. Step 5: Solve for x
    x = 14,713,346,007,592,430/139,271,017.43
  6. Step 6: Final answer
    x = 105,645,426.30

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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.