Home / 51,418,622.81-77,127,040.89-20,712,417.19

Finding the Fourth Proportional to 51,418,622.81, 77,127,040.89 and 20,712,417.19

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Solution

The fourth proportional to 51,418,622.81, 77,127,040.89 and 20,712,417.19 is: 31,068,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,418,622.81 : 77,127,040.89 = 20,712,417.19 : x
  2. Step 2: Convert to fraction form
    51,418,622.81/77,127,040.89 = 20,712,417.19/x
  3. Step 3: Cross multiply
    51,418,622.81x = 77,127,040.89 × 20,712,417.19
  4. Step 4: Simplify right side
    51,418,622.81x = 1,597,487,447,351,051.25
  5. Step 5: Solve for x
    x = 1,597,487,447,351,051.25/51,418,622.81
  6. Step 6: Final answer
    x = 31,068,265.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.