Home / 205,056,008.40-307,584,012.60-191,519,547.60

Finding the Fourth Proportional to 205,056,008.40, 307,584,012.60 and 191,519,547.60

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Solution

The fourth proportional to 205,056,008.40, 307,584,012.60 and 191,519,547.60 is: 287,279,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,056,008.40 : 307,584,012.60 = 191,519,547.60 : x
  2. Step 2: Convert to fraction form
    205,056,008.40/307,584,012.60 = 191,519,547.60/x
  3. Step 3: Cross multiply
    205,056,008.40x = 307,584,012.60 × 191,519,547.60
  4. Step 4: Simplify right side
    205,056,008.40x = 58,908,350,942,144,704
  5. Step 5: Solve for x
    x = 58,908,350,942,144,704/205,056,008.40
  6. Step 6: Final answer
    x = 287,279,321.40

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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.