Home / 611,816,693.75-917,904,121.95-197,285,178.15

Finding the Fourth Proportional to 611,816,693.75, 917,904,121.95 and 197,285,178.15

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Solution

The fourth proportional to 611,816,693.75, 917,904,121.95 and 197,285,178.15 is: 295,985,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,816,693.75 : 917,904,121.95 = 197,285,178.15 : x
  2. Step 2: Convert to fraction form
    611,816,693.75/917,904,121.95 = 197,285,178.15/x
  3. Step 3: Cross multiply
    611,816,693.75x = 917,904,121.95 × 197,285,178.15
  4. Step 4: Simplify right side
    611,816,693.75x = 181,088,878,218,935,584
  5. Step 5: Solve for x
    x = 181,088,878,218,935,584/611,816,693.75
  6. Step 6: Final answer
    x = 295,985,513.42

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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.