Home / 28,474,032.86-39,294,153.02-15,421,292.42

Finding the Fourth Proportional to 28,474,032.86, 39,294,153.02 and 15,421,292.42

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Solution

The fourth proportional to 28,474,032.86, 39,294,153.02 and 15,421,292.42 is: 21,281,376.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474,032.86 : 39,294,153.02 = 15,421,292.42 : x
  2. Step 2: Convert to fraction form
    28,474,032.86/39,294,153.02 = 15,421,292.42/x
  3. Step 3: Cross multiply
    28,474,032.86x = 39,294,153.02 × 15,421,292.42
  4. Step 4: Simplify right side
    28,474,032.86x = 605,966,624,117,646.12
  5. Step 5: Solve for x
    x = 605,966,624,117,646.12/28,474,032.86
  6. Step 6: Final answer
    x = 21,281,376.86

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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.