Home / 193,319,681.82-289,889,619.21-70,412,436.42

Finding the Fourth Proportional to 193,319,681.82, 289,889,619.21 and 70,412,436.42

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Solution

The fourth proportional to 193,319,681.82, 289,889,619.21 and 70,412,436.42 is: 105,585,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,319,681.82 : 289,889,619.21 = 70,412,436.42 : x
  2. Step 2: Convert to fraction form
    193,319,681.82/289,889,619.21 = 70,412,436.42/x
  3. Step 3: Cross multiply
    193,319,681.82x = 289,889,619.21 × 70,412,436.42
  4. Step 4: Simplify right side
    193,319,681.82x = 20,411,834,381,442,136
  5. Step 5: Solve for x
    x = 20,411,834,381,442,136/193,319,681.82
  6. Step 6: Final answer
    x = 105,585,909.25

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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.