Home / 99,862,681.33-137,814,756.27-55,809,678.87

Finding the Fourth Proportional to 99,862,681.33, 137,814,756.27 and 55,809,678.87

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Solution

The fourth proportional to 99,862,681.33, 137,814,756.27 and 55,809,678.87 is: 77,019,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,862,681.33 : 137,814,756.27 = 55,809,678.87 : x
  2. Step 2: Convert to fraction form
    99,862,681.33/137,814,756.27 = 55,809,678.87/x
  3. Step 3: Cross multiply
    99,862,681.33x = 137,814,756.27 × 55,809,678.87
  4. Step 4: Simplify right side
    99,862,681.33x = 7,691,397,290,976,019
  5. Step 5: Solve for x
    x = 7,691,397,290,976,019/99,862,681.33
  6. Step 6: Final answer
    x = 77,019,735.39

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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.