Home / 542,298,189.72-748,371,983.94-294,779,543.88

Finding the Fourth Proportional to 542,298,189.72, 748,371,983.94 and 294,779,543.88

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Solution

The fourth proportional to 542,298,189.72, 748,371,983.94 and 294,779,543.88 is: 406,796,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,298,189.72 : 748,371,983.94 = 294,779,543.88 : x
  2. Step 2: Convert to fraction form
    542,298,189.72/748,371,983.94 = 294,779,543.88/x
  3. Step 3: Cross multiply
    542,298,189.72x = 748,371,983.94 × 294,779,543.88
  4. Step 4: Simplify right side
    542,298,189.72x = 220,604,752,078,403,904
  5. Step 5: Solve for x
    x = 220,604,752,078,403,904/542,298,189.72
  6. Step 6: Final answer
    x = 406,796,032.63

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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.