Home / 137,537,666.18-189,802,980.07-74,814,305.70

Finding the Fourth Proportional to 137,537,666.18, 189,802,980.07 and 74,814,305.70

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Solution

The fourth proportional to 137,537,666.18, 189,802,980.07 and 74,814,305.70 is: 103,244,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,537,666.18 : 189,802,980.07 = 74,814,305.70 : x
  2. Step 2: Convert to fraction form
    137,537,666.18/189,802,980.07 = 74,814,305.70/x
  3. Step 3: Cross multiply
    137,537,666.18x = 189,802,980.07 × 74,814,305.70
  4. Step 4: Simplify right side
    137,537,666.18x = 14,199,978,174,252,712
  5. Step 5: Solve for x
    x = 14,199,978,174,252,712/137,537,666.18
  6. Step 6: Final answer
    x = 103,244,286.23

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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.