Home / 386,236,428.40-579,457,285.80-167,793,036.40

Finding the Fourth Proportional to 386,236,428.40, 579,457,285.80 and 167,793,036.40

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Solution

The fourth proportional to 386,236,428.40, 579,457,285.80 and 167,793,036.40 is: 251,734,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,236,428.40 : 579,457,285.80 = 167,793,036.40 : x
  2. Step 2: Convert to fraction form
    386,236,428.40/579,457,285.80 = 167,793,036.40/x
  3. Step 3: Cross multiply
    386,236,428.40x = 579,457,285.80 × 167,793,036.40
  4. Step 4: Simplify right side
    386,236,428.40x = 97,228,897,448,484,592
  5. Step 5: Solve for x
    x = 97,228,897,448,484,592/386,236,428.40
  6. Step 6: Final answer
    x = 251,734,145.98

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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.