Home / 128,176,707.90-176,882,879.16-69,438,952.83

Finding the Fourth Proportional to 128,176,707.90, 176,882,879.16 and 69,438,952.83

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Solution

The fourth proportional to 128,176,707.90, 176,882,879.16 and 69,438,952.83 is: 95,825,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,176,707.90 : 176,882,879.16 = 69,438,952.83 : x
  2. Step 2: Convert to fraction form
    128,176,707.90/176,882,879.16 = 69,438,952.83/x
  3. Step 3: Cross multiply
    128,176,707.90x = 176,882,879.16 × 69,438,952.83
  4. Step 4: Simplify right side
    128,176,707.90x = 12,282,561,902,425,830
  5. Step 5: Solve for x
    x = 12,282,561,902,425,830/128,176,707.90
  6. Step 6: Final answer
    x = 95,825,225.22

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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.