Home / 283,642,121.60-391,359,477.12-172,130,436.80

Finding the Fourth Proportional to 283,642,121.60, 391,359,477.12 and 172,130,436.80

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Solution

The fourth proportional to 283,642,121.60, 391,359,477.12 and 172,130,436.80 is: 237,499,555.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,642,121.60 : 391,359,477.12 = 172,130,436.80 : x
  2. Step 2: Convert to fraction form
    283,642,121.60/391,359,477.12 = 172,130,436.80/x
  3. Step 3: Cross multiply
    283,642,121.60x = 391,359,477.12 × 172,130,436.80
  4. Step 4: Simplify right side
    283,642,121.60x = 67,364,877,742,485,208
  5. Step 5: Solve for x
    x = 67,364,877,742,485,208/283,642,121.60
  6. Step 6: Final answer
    x = 237,499,555.29

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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.