Home / 515,036,858.70-772,692,145.65-223,779,002.70

Finding the Fourth Proportional to 515,036,858.70, 772,692,145.65 and 223,779,002.70

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Solution

The fourth proportional to 515,036,858.70, 772,692,145.65 and 223,779,002.70 is: 335,727,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,036,858.70 : 772,692,145.65 = 223,779,002.70 : x
  2. Step 2: Convert to fraction form
    515,036,858.70/772,692,145.65 = 223,779,002.70/x
  3. Step 3: Cross multiply
    515,036,858.70x = 772,692,145.65 × 223,779,002.70
  4. Step 4: Simplify right side
    515,036,858.70x = 172,912,277,747,680,128
  5. Step 5: Solve for x
    x = 172,912,277,747,680,128/515,036,858.70
  6. Step 6: Final answer
    x = 335,727,967.48

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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.