Home / 609,444,858.30-914,167,287.45-425,778,848.70

Finding the Fourth Proportional to 609,444,858.30, 914,167,287.45 and 425,778,848.70

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Solution

The fourth proportional to 609,444,858.30, 914,167,287.45 and 425,778,848.70 is: 638,668,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,444,858.30 : 914,167,287.45 = 425,778,848.70 : x
  2. Step 2: Convert to fraction form
    609,444,858.30/914,167,287.45 = 425,778,848.70/x
  3. Step 3: Cross multiply
    609,444,858.30x = 914,167,287.45 × 425,778,848.70
  4. Step 4: Simplify right side
    609,444,858.30x = 389,233,095,169,662,976
  5. Step 5: Solve for x
    x = 389,233,095,169,662,976/609,444,858.30
  6. Step 6: Final answer
    x = 638,668,273.05

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1.5x scale

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.