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Finding the Fourth Proportional to 17,813,999.80, 26,720,999.70 and 7,736,303.80

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Solution

The fourth proportional to 17,813,999.80, 26,720,999.70 and 7,736,303.80 is: 11,604,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,813,999.80 : 26,720,999.70 = 7,736,303.80 : x
  2. Step 2: Convert to fraction form
    17,813,999.80/26,720,999.70 = 7,736,303.80/x
  3. Step 3: Cross multiply
    17,813,999.80x = 26,720,999.70 × 7,736,303.80
  4. Step 4: Simplify right side
    17,813,999.80x = 206,721,771,518,908.84
  5. Step 5: Solve for x
    x = 206,721,771,518,908.84/17,813,999.80
  6. Step 6: Final answer
    x = 11,604,455.70

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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.