Home / 257,605,897.80-386,275,877.10-75,829,456.20

Finding the Fourth Proportional to 257,605,897.80, 386,275,877.10 and 75,829,456.20

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Solution

The fourth proportional to 257,605,897.80, 386,275,877.10 and 75,829,456.20 is: 113,705,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,605,897.80 : 386,275,877.10 = 75,829,456.20 : x
  2. Step 2: Convert to fraction form
    257,605,897.80/386,275,877.10 = 75,829,456.20/x
  3. Step 3: Cross multiply
    257,605,897.80x = 386,275,877.10 × 75,829,456.20
  4. Step 4: Simplify right side
    257,605,897.80x = 29,291,089,703,671,036
  5. Step 5: Solve for x
    x = 29,291,089,703,671,036/257,605,897.80
  6. Step 6: Final answer
    x = 113,705,043.07

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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.