Home / 66,424,711.40-99,637,067.10-39,550,855.40

Finding the Fourth Proportional to 66,424,711.40, 99,637,067.10 and 39,550,855.40

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Solution

The fourth proportional to 66,424,711.40, 99,637,067.10 and 39,550,855.40 is: 59,326,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424,711.40 : 99,637,067.10 = 39,550,855.40 : x
  2. Step 2: Convert to fraction form
    66,424,711.40/99,637,067.10 = 39,550,855.40/x
  3. Step 3: Cross multiply
    66,424,711.40x = 99,637,067.10 × 39,550,855.40
  4. Step 4: Simplify right side
    66,424,711.40x = 3,940,731,233,352,197
  5. Step 5: Solve for x
    x = 3,940,731,233,352,197/66,424,711.40
  6. Step 6: Final answer
    x = 59,326,283.10

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Double scale
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Similar ratio
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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.