Home / 191,917,166.40-287,308,879.20-127,293,940.80

Finding the Fourth Proportional to 191,917,166.40, 287,308,879.20 and 127,293,940.80

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Solution

The fourth proportional to 191,917,166.40, 287,308,879.20 and 127,293,940.80 is: 190,564,919.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,917,166.40 : 287,308,879.20 = 127,293,940.80 : x
  2. Step 2: Convert to fraction form
    191,917,166.40/287,308,879.20 = 127,293,940.80/x
  3. Step 3: Cross multiply
    191,917,166.40x = 287,308,879.20 × 127,293,940.80
  4. Step 4: Simplify right side
    191,917,166.40x = 36,572,679,460,199,152
  5. Step 5: Solve for x
    x = 36,572,679,460,199,152/191,917,166.40
  6. Step 6: Final answer
    x = 190,564,919.99

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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.