Home / 2,640,151,973.20-3,960,227,959.80-1,329,547,608.40

Finding the Fourth Proportional to 2,640,151,973.20, 3,960,227,959.80 and 1,329,547,608.40

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Solution

The fourth proportional to 2,640,151,973.20, 3,960,227,959.80 and 1,329,547,608.40 is: 1,994,321,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,151,973.20 : 3,960,227,959.80 = 1,329,547,608.40 : x
  2. Step 2: Convert to fraction form
    2,640,151,973.20/3,960,227,959.80 = 1,329,547,608.40/x
  3. Step 3: Cross multiply
    2,640,151,973.20x = 3,960,227,959.80 × 1,329,547,608.40
  4. Step 4: Simplify right side
    2,640,151,973.20x = 5,265,311,612,670,902,272
  5. Step 5: Solve for x
    x = 5,265,311,612,670,902,272/2,640,151,973.20
  6. Step 6: Final answer
    x = 1,994,321,412.60

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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.