Home / 287,475,039.40-431,212,559.10-195,642,034.60

Finding the Fourth Proportional to 287,475,039.40, 431,212,559.10 and 195,642,034.60

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Solution

The fourth proportional to 287,475,039.40, 431,212,559.10 and 195,642,034.60 is: 293,463,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,475,039.40 : 431,212,559.10 = 195,642,034.60 : x
  2. Step 2: Convert to fraction form
    287,475,039.40/431,212,559.10 = 195,642,034.60/x
  3. Step 3: Cross multiply
    287,475,039.40x = 431,212,559.10 × 195,642,034.60
  4. Step 4: Simplify right side
    287,475,039.40x = 84,363,302,407,396,752
  5. Step 5: Solve for x
    x = 84,363,302,407,396,752/287,475,039.40
  6. Step 6: Final answer
    x = 293,463,051.90

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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.