Home / 155,368,813,846.38-214,406,681,290.71-86,781,227,907.29

Finding the Fourth Proportional to 155,368,813,846.38, 214,406,681,290.71 and 86,781,227,907.29

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Solution

The fourth proportional to 155,368,813,846.38, 214,406,681,290.71 and 86,781,227,907.29 is: 119,756,820,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368,813,846.38 : 214,406,681,290.71 = 86,781,227,907.29 : x
  2. Step 2: Convert to fraction form
    155,368,813,846.38/214,406,681,290.71 = 86,781,227,907.29/x
  3. Step 3: Cross multiply
    155,368,813,846.38x = 214,406,681,290.71 × 86,781,227,907.29
  4. Step 4: Simplify right side
    155,368,813,846.38x = 18,606,475,073,933,723,828,224
  5. Step 5: Solve for x
    x = 18,606,475,073,933,723,828,224/155,368,813,846.38
  6. Step 6: Final answer
    x = 119,756,820,003.34

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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.