Home / 136,202,803,941.96-187,965,579,699.63-78,331,228,943.28

Finding the Fourth Proportional to 136,202,803,941.96, 187,965,579,699.63 and 78,331,228,943.28

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Solution

The fourth proportional to 136,202,803,941.96, 187,965,579,699.63 and 78,331,228,943.28 is: 108,100,379,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,202,803,941.96 : 187,965,579,699.63 = 78,331,228,943.28 : x
  2. Step 2: Convert to fraction form
    136,202,803,941.96/187,965,579,699.63 = 78,331,228,943.28/x
  3. Step 3: Cross multiply
    136,202,803,941.96x = 187,965,579,699.63 × 78,331,228,943.28
  4. Step 4: Simplify right side
    136,202,803,941.96x = 14,723,574,856,908,061,802,496
  5. Step 5: Solve for x
    x = 14,723,574,856,908,061,802,496/136,202,803,941.96
  6. Step 6: Final answer
    x = 108,100,379,953.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.