Home / 28,166,090.88-42,249,136.92-15,379,620.40

Finding the Fourth Proportional to 28,166,090.88, 42,249,136.92 and 15,379,620.40

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Solution

The fourth proportional to 28,166,090.88, 42,249,136.92 and 15,379,620.40 is: 23,069,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166,090.88 : 42,249,136.92 = 15,379,620.40 : x
  2. Step 2: Convert to fraction form
    28,166,090.88/42,249,136.92 = 15,379,620.40/x
  3. Step 3: Cross multiply
    28,166,090.88x = 42,249,136.92 × 15,379,620.40
  4. Step 4: Simplify right side
    28,166,090.88x = 649,775,688,057,225.25
  5. Step 5: Solve for x
    x = 649,775,688,057,225.25/28,166,090.88
  6. Step 6: Final answer
    x = 23,069,430.93

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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.