Home / 128,942,890.93-177,939,520.36-70,204,882.33

Finding the Fourth Proportional to 128,942,890.93, 177,939,520.36 and 70,204,882.33

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Solution

The fourth proportional to 128,942,890.93, 177,939,520.36 and 70,204,882.33 is: 96,881,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,942,890.93 : 177,939,520.36 = 70,204,882.33 : x
  2. Step 2: Convert to fraction form
    128,942,890.93/177,939,520.36 = 70,204,882.33/x
  3. Step 3: Cross multiply
    128,942,890.93x = 177,939,520.36 × 70,204,882.33
  4. Step 4: Simplify right side
    128,942,890.93x = 12,492,223,088,730,440
  5. Step 5: Solve for x
    x = 12,492,223,088,730,440/128,942,890.93
  6. Step 6: Final answer
    x = 96,881,828.84

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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.