Home / 128,430,662.32-177,234,795.76-69,693,339.59

Finding the Fourth Proportional to 128,430,662.32, 177,234,795.76 and 69,693,339.59

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Solution

The fourth proportional to 128,430,662.32, 177,234,795.76 and 69,693,339.59 is: 96,177,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,430,662.32 : 177,234,795.76 = 69,693,339.59 : x
  2. Step 2: Convert to fraction form
    128,430,662.32/177,234,795.76 = 69,693,339.59/x
  3. Step 3: Cross multiply
    128,430,662.32x = 177,234,795.76 × 69,693,339.59
  4. Step 4: Simplify right side
    128,430,662.32x = 12,352,084,808,065,972
  5. Step 5: Solve for x
    x = 12,352,084,808,065,972/128,430,662.32
  6. Step 6: Final answer
    x = 96,177,070.06

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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.