Home / 122,480,997.40-183,721,496.10-81,666,328.60

Finding the Fourth Proportional to 122,480,997.40, 183,721,496.10 and 81,666,328.60

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Solution

The fourth proportional to 122,480,997.40, 183,721,496.10 and 81,666,328.60 is: 122,499,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,480,997.40 : 183,721,496.10 = 81,666,328.60 : x
  2. Step 2: Convert to fraction form
    122,480,997.40/183,721,496.10 = 81,666,328.60/x
  3. Step 3: Cross multiply
    122,480,997.40x = 183,721,496.10 × 81,666,328.60
  4. Step 4: Simplify right side
    122,480,997.40x = 15,003,860,071,386,216
  5. Step 5: Solve for x
    x = 15,003,860,071,386,216/122,480,997.40
  6. Step 6: Final answer
    x = 122,499,492.90

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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.