Home / 155,368,813,846.39-214,406,681,290.70-86,781,227,907.29

Finding the Fourth Proportional to 155,368,813,846.39, 214,406,681,290.70 and 86,781,227,907.29

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Solution

The fourth proportional to 155,368,813,846.39, 214,406,681,290.70 and 86,781,227,907.29 is: 119,756,820,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368,813,846.39 : 214,406,681,290.70 = 86,781,227,907.29 : x
  2. Step 2: Convert to fraction form
    155,368,813,846.39/214,406,681,290.70 = 86,781,227,907.29/x
  3. Step 3: Cross multiply
    155,368,813,846.39x = 214,406,681,290.70 × 86,781,227,907.29
  4. Step 4: Simplify right side
    155,368,813,846.39x = 18,606,475,073,932,857,704,448
  5. Step 5: Solve for x
    x = 18,606,475,073,932,857,704,448/155,368,813,846.39
  6. Step 6: Final answer
    x = 119,756,820,003.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.