Home / 100,310,964.58-137,938,248.38-87,057,131.40

Finding the Fourth Proportional to 100,310,964.58, 137,938,248.38 and 87,057,131.40

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Solution

The fourth proportional to 100,310,964.58, 137,938,248.38 and 87,057,131.40 is: 119,712,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,310,964.58 : 137,938,248.38 = 87,057,131.40 : x
  2. Step 2: Convert to fraction form
    100,310,964.58/137,938,248.38 = 87,057,131.40/x
  3. Step 3: Cross multiply
    100,310,964.58x = 137,938,248.38 × 87,057,131.40
  4. Step 4: Simplify right side
    100,310,964.58x = 12,008,508,214,303,498
  5. Step 5: Solve for x
    x = 12,008,508,214,303,498/100,310,964.58
  6. Step 6: Final answer
    x = 119,712,817.68

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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.