Home / 100,980,893.54-139,359,878.07-55,717,417.66

Finding the Fourth Proportional to 100,980,893.54, 139,359,878.07 and 55,717,417.66

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Solution

The fourth proportional to 100,980,893.54, 139,359,878.07 and 55,717,417.66 is: 76,893,482.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,980,893.54 : 139,359,878.07 = 55,717,417.66 : x
  2. Step 2: Convert to fraction form
    100,980,893.54/139,359,878.07 = 55,717,417.66/x
  3. Step 3: Cross multiply
    100,980,893.54x = 139,359,878.07 × 55,717,417.66
  4. Step 4: Simplify right side
    100,980,893.54x = 7,764,772,531,472,864
  5. Step 5: Solve for x
    x = 7,764,772,531,472,864/100,980,893.54
  6. Step 6: Final answer
    x = 76,893,482.12

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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.