Home / 2,640,152,073.70-3,960,228,110.55-1,329,547,708.90

Finding the Fourth Proportional to 2,640,152,073.70, 3,960,228,110.55 and 1,329,547,708.90

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Solution

The fourth proportional to 2,640,152,073.70, 3,960,228,110.55 and 1,329,547,708.90 is: 1,994,321,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,152,073.70 : 3,960,228,110.55 = 1,329,547,708.90 : x
  2. Step 2: Convert to fraction form
    2,640,152,073.70/3,960,228,110.55 = 1,329,547,708.90/x
  3. Step 3: Cross multiply
    2,640,152,073.70x = 3,960,228,110.55 × 1,329,547,708.90
  4. Step 4: Simplify right side
    2,640,152,073.70x = 5,265,312,211,103,128,576
  5. Step 5: Solve for x
    x = 5,265,312,211,103,128,576/2,640,152,073.70
  6. Step 6: Final answer
    x = 1,994,321,563.35

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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.