Home / 191,917,121.40-287,308,811.70-127,293,895.80

Finding the Fourth Proportional to 191,917,121.40, 287,308,811.70 and 127,293,895.80

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Solution

The fourth proportional to 191,917,121.40, 287,308,811.70 and 127,293,895.80 is: 190,564,852.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,917,121.40 : 287,308,811.70 = 127,293,895.80 : x
  2. Step 2: Convert to fraction form
    191,917,121.40/287,308,811.70 = 127,293,895.80/x
  3. Step 3: Cross multiply
    191,917,121.40x = 287,308,811.70 × 127,293,895.80
  4. Step 4: Simplify right side
    191,917,121.40x = 36,572,657,938,961,616
  5. Step 5: Solve for x
    x = 36,572,657,938,961,616/191,917,121.40
  6. Step 6: Final answer
    x = 190,564,852.54

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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.