Home / 155,689,080-214,855,415.04-86,078,954.40

Finding the Fourth Proportional to 155,689,080, 214,855,415.04 and 86,078,954.40

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Solution

The fourth proportional to 155,689,080, 214,855,415.04 and 86,078,954.40 is: 118,791,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,689,080 : 214,855,415.04 = 86,078,954.40 : x
  2. Step 2: Convert to fraction form
    155,689,080/214,855,415.04 = 86,078,954.40/x
  3. Step 3: Cross multiply
    155,689,080x = 214,855,415.04 × 86,078,954.40
  4. Step 4: Simplify right side
    155,689,080x = 18,494,529,473,821,236
  5. Step 5: Solve for x
    x = 18,494,529,473,821,236/155,689,080
  6. Step 6: Final answer
    x = 118,791,436.59

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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.