Home / 122,779,266.21-169,429,433.81-69,850,990.17

Finding the Fourth Proportional to 122,779,266.21, 169,429,433.81 and 69,850,990.17

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Solution

The fourth proportional to 122,779,266.21, 169,429,433.81 and 69,850,990.17 is: 96,390,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,779,266.21 : 169,429,433.81 = 69,850,990.17 : x
  2. Step 2: Convert to fraction form
    122,779,266.21/169,429,433.81 = 69,850,990.17/x
  3. Step 3: Cross multiply
    122,779,266.21x = 169,429,433.81 × 69,850,990.17
  4. Step 4: Simplify right side
    122,779,266.21x = 11,834,813,715,221,722
  5. Step 5: Solve for x
    x = 11,834,813,715,221,722/122,779,266.21
  6. Step 6: Final answer
    x = 96,390,979.36

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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.