Home / 55,918,103.34-77,164,500.51-31,139,568.30

Finding the Fourth Proportional to 55,918,103.34, 77,164,500.51 and 31,139,568.30

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Solution

The fourth proportional to 55,918,103.34, 77,164,500.51 and 31,139,568.30 is: 42,971,222.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,918,103.34 : 77,164,500.51 = 31,139,568.30 : x
  2. Step 2: Convert to fraction form
    55,918,103.34/77,164,500.51 = 31,139,568.30/x
  3. Step 3: Cross multiply
    55,918,103.34x = 77,164,500.51 × 31,139,568.30
  4. Step 4: Simplify right side
    55,918,103.34x = 2,402,869,233,966,530
  5. Step 5: Solve for x
    x = 2,402,869,233,966,530/55,918,103.34
  6. Step 6: Final answer
    x = 42,971,222.03

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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.