Home / 647,881,943.40-972,049,663.26-187,847,718.12

Finding the Fourth Proportional to 647,881,943.40, 972,049,663.26 and 187,847,718.12

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Solution

The fourth proportional to 647,881,943.40, 972,049,663.26 and 187,847,718.12 is: 281,837,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,881,943.40 : 972,049,663.26 = 187,847,718.12 : x
  2. Step 2: Convert to fraction form
    647,881,943.40/972,049,663.26 = 187,847,718.12/x
  3. Step 3: Cross multiply
    647,881,943.40x = 972,049,663.26 × 187,847,718.12
  4. Step 4: Simplify right side
    647,881,943.40x = 182,597,311,142,705,408
  5. Step 5: Solve for x
    x = 182,597,311,142,705,408/647,881,943.40
  6. Step 6: Final answer
    x = 281,837,320.83

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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.