Home / 193,319,666.82-289,889,596.71-70,412,421.42

Finding the Fourth Proportional to 193,319,666.82, 289,889,596.71 and 70,412,421.42

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Solution

The fourth proportional to 193,319,666.82, 289,889,596.71 and 70,412,421.42 is: 105,585,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,319,666.82 : 289,889,596.71 = 70,412,421.42 : x
  2. Step 2: Convert to fraction form
    193,319,666.82/289,889,596.71 = 70,412,421.42/x
  3. Step 3: Cross multiply
    193,319,666.82x = 289,889,596.71 × 70,412,421.42
  4. Step 4: Simplify right side
    193,319,666.82x = 20,411,828,448,818,364
  5. Step 5: Solve for x
    x = 20,411,828,448,818,364/193,319,666.82
  6. Step 6: Final answer
    x = 105,585,886.76

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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.