Home / 91,213,110.60-136,628,894.70-42,732,342.60

Finding the Fourth Proportional to 91,213,110.60, 136,628,894.70 and 42,732,342.60

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Solution

The fourth proportional to 91,213,110.60, 136,628,894.70 and 42,732,342.60 is: 64,009,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,213,110.60 : 136,628,894.70 = 42,732,342.60 : x
  2. Step 2: Convert to fraction form
    91,213,110.60/136,628,894.70 = 42,732,342.60/x
  3. Step 3: Cross multiply
    91,213,110.60x = 136,628,894.70 × 42,732,342.60
  4. Step 4: Simplify right side
    91,213,110.60x = 5,838,472,737,379,724
  5. Step 5: Solve for x
    x = 5,838,472,737,379,724/91,213,110.60
  6. Step 6: Final answer
    x = 64,009,139.68

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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.