Home / 191,840,212.23-287,650,168.69-75,118,907.31

Finding the Fourth Proportional to 191,840,212.23, 287,650,168.69 and 75,118,907.31

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Solution

The fourth proportional to 191,840,212.23, 287,650,168.69 and 75,118,907.31 is: 112,635,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,840,212.23 : 287,650,168.69 = 75,118,907.31 : x
  2. Step 2: Convert to fraction form
    191,840,212.23/287,650,168.69 = 75,118,907.31/x
  3. Step 3: Cross multiply
    191,840,212.23x = 287,650,168.69 × 75,118,907.31
  4. Step 4: Simplify right side
    191,840,212.23x = 21,607,966,359,529,976
  5. Step 5: Solve for x
    x = 21,607,966,359,529,976/191,840,212.23
  6. Step 6: Final answer
    x = 112,635,229.64

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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.