Home / 136,573,350.80-188,459,431.56-77,031,368.72

Finding the Fourth Proportional to 136,573,350.80, 188,459,431.56 and 77,031,368.72

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Solution

The fourth proportional to 136,573,350.80, 188,459,431.56 and 77,031,368.72 is: 106,296,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,573,350.80 : 188,459,431.56 = 77,031,368.72 : x
  2. Step 2: Convert to fraction form
    136,573,350.80/188,459,431.56 = 77,031,368.72/x
  3. Step 3: Cross multiply
    136,573,350.80x = 188,459,431.56 × 77,031,368.72
  4. Step 4: Simplify right side
    136,573,350.80x = 14,517,287,961,259,964
  5. Step 5: Solve for x
    x = 14,517,287,961,259,964/136,573,350.80
  6. Step 6: Final answer
    x = 106,296,637.49

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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.