Home / 145,883,519.51-201,318,655.04-78,902,552.39

Finding the Fourth Proportional to 145,883,519.51, 201,318,655.04 and 78,902,552.39

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Solution

The fourth proportional to 145,883,519.51, 201,318,655.04 and 78,902,552.39 is: 108,885,196.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,883,519.51 : 201,318,655.04 = 78,902,552.39 : x
  2. Step 2: Convert to fraction form
    145,883,519.51/201,318,655.04 = 78,902,552.39/x
  3. Step 3: Cross multiply
    145,883,519.51x = 201,318,655.04 × 78,902,552.39
  4. Step 4: Simplify right side
    145,883,519.51x = 15,884,555,725,371,344
  5. Step 5: Solve for x
    x = 15,884,555,725,371,344/145,883,519.51
  6. Step 6: Final answer
    x = 108,885,196.76

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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.