Home / 171,272,905.84-257,017,431.51-72,904,456.13

Finding the Fourth Proportional to 171,272,905.84, 257,017,431.51 and 72,904,456.13

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Solution

The fourth proportional to 171,272,905.84, 257,017,431.51 and 72,904,456.13 is: 109,402,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,272,905.84 : 257,017,431.51 = 72,904,456.13 : x
  2. Step 2: Convert to fraction form
    171,272,905.84/257,017,431.51 = 72,904,456.13/x
  3. Step 3: Cross multiply
    171,272,905.84x = 257,017,431.51 × 72,904,456.13
  4. Step 4: Simplify right side
    171,272,905.84x = 18,737,716,060,808,616
  5. Step 5: Solve for x
    x = 18,737,716,060,808,616/171,272,905.84
  6. Step 6: Final answer
    x = 109,402,686.72

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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.