Home / 1,311,383,624.40-1,966,859,972.32-470,852,368.45

Finding the Fourth Proportional to 1,311,383,624.40, 1,966,859,972.32 and 470,852,368.45

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Solution

The fourth proportional to 1,311,383,624.40, 1,966,859,972.32 and 470,852,368.45 is: 706,201,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,383,624.40 : 1,966,859,972.32 = 470,852,368.45 : x
  2. Step 2: Convert to fraction form
    1,311,383,624.40/1,966,859,972.32 = 470,852,368.45/x
  3. Step 3: Cross multiply
    1,311,383,624.40x = 1,966,859,972.32 × 470,852,368.45
  4. Step 4: Simplify right side
    1,311,383,624.40x = 926,100,676,376,373,376
  5. Step 5: Solve for x
    x = 926,100,676,376,373,376/1,311,383,624.40
  6. Step 6: Final answer
    x = 706,201,190.21

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Double scale
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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.