Home / 154,395,873.48-213,070,007.21-83,834,457.72

Finding the Fourth Proportional to 154,395,873.48, 213,070,007.21 and 83,834,457.72

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Solution

The fourth proportional to 154,395,873.48, 213,070,007.21 and 83,834,457.72 is: 115,693,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,395,873.48 : 213,070,007.21 = 83,834,457.72 : x
  2. Step 2: Convert to fraction form
    154,395,873.48/213,070,007.21 = 83,834,457.72/x
  3. Step 3: Cross multiply
    154,395,873.48x = 213,070,007.21 × 83,834,457.72
  4. Step 4: Simplify right side
    154,395,873.48x = 17,862,608,510,846,840
  5. Step 5: Solve for x
    x = 17,862,608,510,846,840/154,395,873.48
  6. Step 6: Final answer
    x = 115,693,561.68

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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.