Home / 28,120,612.32-42,112,801.50-19,460,444.04

Finding the Fourth Proportional to 28,120,612.32, 42,112,801.50 and 19,460,444.04

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Solution

The fourth proportional to 28,120,612.32, 42,112,801.50 and 19,460,444.04 is: 29,143,526.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120,612.32 : 42,112,801.50 = 19,460,444.04 : x
  2. Step 2: Convert to fraction form
    28,120,612.32/42,112,801.50 = 19,460,444.04/x
  3. Step 3: Cross multiply
    28,120,612.32x = 42,112,801.50 × 19,460,444.04
  4. Step 4: Simplify right side
    28,120,612.32x = 819,533,816,958,378
  5. Step 5: Solve for x
    x = 819,533,816,958,378/28,120,612.32
  6. Step 6: Final answer
    x = 29,143,526.74

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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.