Home / 163,872,900.60-245,738,492.10-81,960,127.80

Finding the Fourth Proportional to 163,872,900.60, 245,738,492.10 and 81,960,127.80

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Solution

The fourth proportional to 163,872,900.60, 245,738,492.10 and 81,960,127.80 is: 122,904,752.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,872,900.60 : 245,738,492.10 = 81,960,127.80 : x
  2. Step 2: Convert to fraction form
    163,872,900.60/245,738,492.10 = 81,960,127.80/x
  3. Step 3: Cross multiply
    163,872,900.60x = 245,738,492.10 × 81,960,127.80
  4. Step 4: Simplify right side
    163,872,900.60x = 20,140,758,217,895,288
  5. Step 5: Solve for x
    x = 20,140,758,217,895,288/163,872,900.60
  6. Step 6: Final answer
    x = 122,904,752.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.