Home / 538,272,015.40-807,408,023.10-354,606,005.80

Finding the Fourth Proportional to 538,272,015.40, 807,408,023.10 and 354,606,005.80

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Solution

The fourth proportional to 538,272,015.40, 807,408,023.10 and 354,606,005.80 is: 531,909,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,272,015.40 : 807,408,023.10 = 354,606,005.80 : x
  2. Step 2: Convert to fraction form
    538,272,015.40/807,408,023.10 = 354,606,005.80/x
  3. Step 3: Cross multiply
    538,272,015.40x = 807,408,023.10 × 354,606,005.80
  4. Step 4: Simplify right side
    538,272,015.40x = 286,311,734,122,365,152
  5. Step 5: Solve for x
    x = 286,311,734,122,365,152/538,272,015.40
  6. Step 6: Final answer
    x = 531,909,008.70

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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.