Home / 191,539,496,797.68-287,309,521,714.09-78,219,222,816.57

Finding the Fourth Proportional to 191,539,496,797.68, 287,309,521,714.09 and 78,219,222,816.57

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Solution

The fourth proportional to 191,539,496,797.68, 287,309,521,714.09 and 78,219,222,816.57 is: 117,328,947,146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,539,496,797.68 : 287,309,521,714.09 = 78,219,222,816.57 : x
  2. Step 2: Convert to fraction form
    191,539,496,797.68/287,309,521,714.09 = 78,219,222,816.57/x
  3. Step 3: Cross multiply
    191,539,496,797.68x = 287,309,521,714.09 × 78,219,222,816.57
  4. Step 4: Simplify right side
    191,539,496,797.68x = 22,473,127,496,276,567,392,256
  5. Step 5: Solve for x
    x = 22,473,127,496,276,567,392,256/191,539,496,797.68
  6. Step 6: Final answer
    x = 117,328,947,146.68

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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.