Home / 171,653,764.80-257,256,698.40-79,526,827.20

Finding the Fourth Proportional to 171,653,764.80, 257,256,698.40 and 79,526,827.20

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Solution

The fourth proportional to 171,653,764.80, 257,256,698.40 and 79,526,827.20 is: 119,186,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,653,764.80 : 257,256,698.40 = 79,526,827.20 : x
  2. Step 2: Convert to fraction form
    171,653,764.80/257,256,698.40 = 79,526,827.20/x
  3. Step 3: Cross multiply
    171,653,764.80x = 257,256,698.40 × 79,526,827.20
  4. Step 4: Simplify right side
    171,653,764.80x = 20,458,808,999,699,316
  5. Step 5: Solve for x
    x = 20,458,808,999,699,316/171,653,764.80
  6. Step 6: Final answer
    x = 119,186,485.79

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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.