Home / 191,539,496,838.44-287,309,521,775.20-78,219,222,857.36

Finding the Fourth Proportional to 191,539,496,838.44, 287,309,521,775.20 and 78,219,222,857.36

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Solution

The fourth proportional to 191,539,496,838.44, 287,309,521,775.20 and 78,219,222,857.36 is: 117,328,947,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,539,496,838.44 : 287,309,521,775.20 = 78,219,222,857.36 : x
  2. Step 2: Convert to fraction form
    191,539,496,838.44/287,309,521,775.20 = 78,219,222,857.36/x
  3. Step 3: Cross multiply
    191,539,496,838.44x = 287,309,521,775.20 × 78,219,222,857.36
  4. Step 4: Simplify right side
    191,539,496,838.44x = 22,473,127,512,775,893,975,040
  5. Step 5: Solve for x
    x = 22,473,127,512,775,893,975,040/191,539,496,838.44
  6. Step 6: Final answer
    x = 117,328,947,207.85

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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.