Home / 2,640,151,637.20-3,960,227,455.80-1,329,547,272.40

Finding the Fourth Proportional to 2,640,151,637.20, 3,960,227,455.80 and 1,329,547,272.40

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Solution

The fourth proportional to 2,640,151,637.20, 3,960,227,455.80 and 1,329,547,272.40 is: 1,994,320,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,151,637.20 : 3,960,227,455.80 = 1,329,547,272.40 : x
  2. Step 2: Convert to fraction form
    2,640,151,637.20/3,960,227,455.80 = 1,329,547,272.40/x
  3. Step 3: Cross multiply
    2,640,151,637.20x = 3,960,227,455.80 × 1,329,547,272.40
  4. Step 4: Simplify right side
    2,640,151,637.20x = 5,265,309,611,942,481,920
  5. Step 5: Solve for x
    x = 5,265,309,611,942,481,920/2,640,151,637.20
  6. Step 6: Final answer
    x = 1,994,320,908.60

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1.5x scale

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.