Home / 392,393,892.03-541,528,030.40-216,181,850.93

Finding the Fourth Proportional to 392,393,892.03, 541,528,030.40 and 216,181,850.93

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Solution

The fourth proportional to 392,393,892.03, 541,528,030.40 and 216,181,850.93 is: 298,344,429.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,393,892.03 : 541,528,030.40 = 216,181,850.93 : x
  2. Step 2: Convert to fraction form
    392,393,892.03/541,528,030.40 = 216,181,850.93/x
  3. Step 3: Cross multiply
    392,393,892.03x = 541,528,030.40 × 216,181,850.93
  4. Step 4: Simplify right side
    392,393,892.03x = 117,068,531,942,349,312
  5. Step 5: Solve for x
    x = 117,068,531,942,349,312/392,393,892.03
  6. Step 6: Final answer
    x = 298,344,429.72

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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.