Home / 103,841,826.65-155,763,003.79-42,430,985.44

Finding the Fourth Proportional to 103,841,826.65, 155,763,003.79 and 42,430,985.44

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Solution

The fourth proportional to 103,841,826.65, 155,763,003.79 and 42,430,985.44 is: 63,646,585.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,841,826.65 : 155,763,003.79 = 42,430,985.44 : x
  2. Step 2: Convert to fraction form
    103,841,826.65/155,763,003.79 = 42,430,985.44/x
  3. Step 3: Cross multiply
    103,841,826.65x = 155,763,003.79 × 42,430,985.44
  4. Step 4: Simplify right side
    103,841,826.65x = 6,609,177,745,339,521
  5. Step 5: Solve for x
    x = 6,609,177,745,339,521/103,841,826.65
  6. Step 6: Final answer
    x = 63,646,585.96

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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.