Home / 21,013,108.80-31,495,168.80-9,654,705.60

Finding the Fourth Proportional to 21,013,108.80, 31,495,168.80 and 9,654,705.60

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Solution

The fourth proportional to 21,013,108.80, 31,495,168.80 and 9,654,705.60 is: 14,470,804.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,108.80 : 31,495,168.80 = 9,654,705.60 : x
  2. Step 2: Convert to fraction form
    21,013,108.80/31,495,168.80 = 9,654,705.60/x
  3. Step 3: Cross multiply
    21,013,108.80x = 31,495,168.80 × 9,654,705.60
  4. Step 4: Simplify right side
    21,013,108.80x = 304,076,582,586,305.25
  5. Step 5: Solve for x
    x = 304,076,582,586,305.25/21,013,108.80
  6. Step 6: Final answer
    x = 14,470,804.18

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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.