Home / 171,235,239.65-256,853,357.71-72,841,595.71

Finding the Fourth Proportional to 171,235,239.65, 256,853,357.71 and 72,841,595.71

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Solution

The fourth proportional to 171,235,239.65, 256,853,357.71 and 72,841,595.71 is: 109,262,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,235,239.65 : 256,853,357.71 = 72,841,595.71 : x
  2. Step 2: Convert to fraction form
    171,235,239.65/256,853,357.71 = 72,841,595.71/x
  3. Step 3: Cross multiply
    171,235,239.65x = 256,853,357.71 × 72,841,595.71
  4. Step 4: Simplify right side
    171,235,239.65x = 18,709,608,438,724,424
  5. Step 5: Solve for x
    x = 18,709,608,438,724,424/171,235,239.65
  6. Step 6: Final answer
    x = 109,262,605.50

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1.5x scale

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.