Home / 791,235,985.56-1,091,971,027.17-438,925,565.40

Finding the Fourth Proportional to 791,235,985.56, 1,091,971,027.17 and 438,925,565.40

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Solution

The fourth proportional to 791,235,985.56, 1,091,971,027.17 and 438,925,565.40 is: 605,753,541.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,235,985.56 : 1,091,971,027.17 = 438,925,565.40 : x
  2. Step 2: Convert to fraction form
    791,235,985.56/1,091,971,027.17 = 438,925,565.40/x
  3. Step 3: Cross multiply
    791,235,985.56x = 1,091,971,027.17 × 438,925,565.40
  4. Step 4: Simplify right side
    791,235,985.56x = 479,294,000,501,011,008
  5. Step 5: Solve for x
    x = 479,294,000,501,011,008/791,235,985.56
  6. Step 6: Final answer
    x = 605,753,541.61

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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.