Home / 109,038,220.30-163,637,046.60-72,634,511.80

Finding the Fourth Proportional to 109,038,220.30, 163,637,046.60 and 72,634,511.80

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Solution

The fourth proportional to 109,038,220.30, 163,637,046.60 and 72,634,511.80 is: 109,004,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,038,220.30 : 163,637,046.60 = 72,634,511.80 : x
  2. Step 2: Convert to fraction form
    109,038,220.30/163,637,046.60 = 72,634,511.80/x
  3. Step 3: Cross multiply
    109,038,220.30x = 163,637,046.60 × 72,634,511.80
  4. Step 4: Simplify right side
    109,038,220.30x = 11,885,696,992,184,848
  5. Step 5: Solve for x
    x = 11,885,696,992,184,848/109,038,220.30
  6. Step 6: Final answer
    x = 109,004,869.66

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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.