Home / 123,430,256.10-185,145,384.15-103,424,163.30

Finding the Fourth Proportional to 123,430,256.10, 185,145,384.15 and 103,424,163.30

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Solution

The fourth proportional to 123,430,256.10, 185,145,384.15 and 103,424,163.30 is: 155,136,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,430,256.10 : 185,145,384.15 = 103,424,163.30 : x
  2. Step 2: Convert to fraction form
    123,430,256.10/185,145,384.15 = 103,424,163.30/x
  3. Step 3: Cross multiply
    123,430,256.10x = 185,145,384.15 × 103,424,163.30
  4. Step 4: Simplify right side
    123,430,256.10x = 19,148,506,444,570,832
  5. Step 5: Solve for x
    x = 19,148,506,444,570,832/123,430,256.10
  6. Step 6: Final answer
    x = 155,136,244.95

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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.