Home / 79,717,371.40-119,569,836.30-31,185,800.20

Finding the Fourth Proportional to 79,717,371.40, 119,569,836.30 and 31,185,800.20

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Solution

The fourth proportional to 79,717,371.40, 119,569,836.30 and 31,185,800.20 is: 46,776,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,717,371.40 : 119,569,836.30 = 31,185,800.20 : x
  2. Step 2: Convert to fraction form
    79,717,371.40/119,569,836.30 = 31,185,800.20/x
  3. Step 3: Cross multiply
    79,717,371.40x = 119,569,836.30 × 31,185,800.20
  4. Step 4: Simplify right side
    79,717,371.40x = 3,728,881,024,798,507
  5. Step 5: Solve for x
    x = 3,728,881,024,798,507/79,717,371.40
  6. Step 6: Final answer
    x = 46,776,266.69

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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.