Home / 128,065,869.21-176,730,956.70-69,328,532.37

Finding the Fourth Proportional to 128,065,869.21, 176,730,956.70 and 69,328,532.37

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Solution

The fourth proportional to 128,065,869.21, 176,730,956.70 and 69,328,532.37 is: 95,673,405.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,869.21 : 176,730,956.70 = 69,328,532.37 : x
  2. Step 2: Convert to fraction form
    128,065,869.21/176,730,956.70 = 69,328,532.37/x
  3. Step 3: Cross multiply
    128,065,869.21x = 176,730,956.70 × 69,328,532.37
  4. Step 4: Simplify right side
    128,065,869.21x = 12,252,497,852,357,018
  5. Step 5: Solve for x
    x = 12,252,497,852,357,018/128,065,869.21
  6. Step 6: Final answer
    x = 95,673,405.63

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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.