Home / 76,402,136.34-105,431,640.44-41,594,948.78

Finding the Fourth Proportional to 76,402,136.34, 105,431,640.44 and 41,594,948.78

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Solution

The fourth proportional to 76,402,136.34, 105,431,640.44 and 41,594,948.78 is: 57,399,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,402,136.34 : 105,431,640.44 = 41,594,948.78 : x
  2. Step 2: Convert to fraction form
    76,402,136.34/105,431,640.44 = 41,594,948.78/x
  3. Step 3: Cross multiply
    76,402,136.34x = 105,431,640.44 × 41,594,948.78
  4. Step 4: Simplify right side
    76,402,136.34x = 4,385,423,683,158,043.50
  5. Step 5: Solve for x
    x = 4,385,423,683,158,043.50/76,402,136.34
  6. Step 6: Final answer
    x = 57,399,228.52

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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.