Home / 28,239,664.80-42,365,402.10-9,072,359.40

Finding the Fourth Proportional to 28,239,664.80, 42,365,402.10 and 9,072,359.40

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Solution

The fourth proportional to 28,239,664.80, 42,365,402.10 and 9,072,359.40 is: 13,610,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239,664.80 : 42,365,402.10 = 9,072,359.40 : x
  2. Step 2: Convert to fraction form
    28,239,664.80/42,365,402.10 = 9,072,359.40/x
  3. Step 3: Cross multiply
    28,239,664.80x = 42,365,402.10 × 9,072,359.40
  4. Step 4: Simplify right side
    28,239,664.80x = 384,354,153,976,714.75
  5. Step 5: Solve for x
    x = 384,354,153,976,714.75/28,239,664.80
  6. Step 6: Final answer
    x = 13,610,436.13

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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.