Home / 282,759,131.05-424,138,696.58-78,287,206.30

Finding the Fourth Proportional to 282,759,131.05, 424,138,696.58 and 78,287,206.30

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Solution

The fourth proportional to 282,759,131.05, 424,138,696.58 and 78,287,206.30 is: 117,430,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,759,131.05 : 424,138,696.58 = 78,287,206.30 : x
  2. Step 2: Convert to fraction form
    282,759,131.05/424,138,696.58 = 78,287,206.30/x
  3. Step 3: Cross multiply
    282,759,131.05x = 424,138,696.58 × 78,287,206.30
  4. Step 4: Simplify right side
    282,759,131.05x = 33,204,633,638,580,128
  5. Step 5: Solve for x
    x = 33,204,633,638,580,128/282,759,131.05
  6. Step 6: Final answer
    x = 117,430,809.45

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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.