Home / 76,636,772.64-115,005,930.38-42,117,280.82

Finding the Fourth Proportional to 76,636,772.64, 115,005,930.38 and 42,117,280.82

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Solution

The fourth proportional to 76,636,772.64, 115,005,930.38 and 42,117,280.82 is: 63,203,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,636,772.64 : 115,005,930.38 = 42,117,280.82 : x
  2. Step 2: Convert to fraction form
    76,636,772.64/115,005,930.38 = 42,117,280.82/x
  3. Step 3: Cross multiply
    76,636,772.64x = 115,005,930.38 × 42,117,280.82
  4. Step 4: Simplify right side
    76,636,772.64x = 4,843,737,064,994,213
  5. Step 5: Solve for x
    x = 4,843,737,064,994,213/76,636,772.64
  6. Step 6: Final answer
    x = 63,203,823.68

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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.