Home / 191,539,496,798.21-287,309,521,714.88-78,219,222,817.10

Finding the Fourth Proportional to 191,539,496,798.21, 287,309,521,714.88 and 78,219,222,817.10

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Solution

The fourth proportional to 191,539,496,798.21, 287,309,521,714.88 and 78,219,222,817.10 is: 117,328,947,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,539,496,798.21 : 287,309,521,714.88 = 78,219,222,817.10 : x
  2. Step 2: Convert to fraction form
    191,539,496,798.21/287,309,521,714.88 = 78,219,222,817.10/x
  3. Step 3: Cross multiply
    191,539,496,798.21x = 287,309,521,714.88 × 78,219,222,817.10
  4. Step 4: Simplify right side
    191,539,496,798.21x = 22,473,127,496,490,632,085,504
  5. Step 5: Solve for x
    x = 22,473,127,496,490,632,085,504/191,539,496,798.21
  6. Step 6: Final answer
    x = 117,328,947,147.47

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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.