Home / 123,430,222.60-185,145,333.90-103,424,129.80

Finding the Fourth Proportional to 123,430,222.60, 185,145,333.90 and 103,424,129.80

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Solution

The fourth proportional to 123,430,222.60, 185,145,333.90 and 103,424,129.80 is: 155,136,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,430,222.60 : 185,145,333.90 = 103,424,129.80 : x
  2. Step 2: Convert to fraction form
    123,430,222.60/185,145,333.90 = 103,424,129.80/x
  3. Step 3: Cross multiply
    123,430,222.60x = 185,145,333.90 × 103,424,129.80
  4. Step 4: Simplify right side
    123,430,222.60x = 19,148,495,045,137,940
  5. Step 5: Solve for x
    x = 19,148,495,045,137,940/123,430,222.60
  6. Step 6: Final answer
    x = 155,136,194.70

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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.