Home / 155,382,097.48-214,427,315.87-85,767,493.12

Finding the Fourth Proportional to 155,382,097.48, 214,427,315.87 and 85,767,493.12

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Solution

The fourth proportional to 155,382,097.48, 214,427,315.87 and 85,767,493.12 is: 118,359,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,382,097.48 : 214,427,315.87 = 85,767,493.12 : x
  2. Step 2: Convert to fraction form
    155,382,097.48/214,427,315.87 = 85,767,493.12/x
  3. Step 3: Cross multiply
    155,382,097.48x = 214,427,315.87 × 85,767,493.12
  4. Step 4: Simplify right side
    155,382,097.48x = 18,390,893,338,191,456
  5. Step 5: Solve for x
    x = 18,390,893,338,191,456/155,382,097.48
  6. Step 6: Final answer
    x = 118,359,152.29

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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.