Home / 128,862,384.82-177,829,418.45-70,125,470.33

Finding the Fourth Proportional to 128,862,384.82, 177,829,418.45 and 70,125,470.33

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Solution

The fourth proportional to 128,862,384.82, 177,829,418.45 and 70,125,470.33 is: 96,772,783.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,862,384.82 : 177,829,418.45 = 70,125,470.33 : x
  2. Step 2: Convert to fraction form
    128,862,384.82/177,829,418.45 = 70,125,470.33/x
  3. Step 3: Cross multiply
    128,862,384.82x = 177,829,418.45 × 70,125,470.33
  4. Step 4: Simplify right side
    128,862,384.82x = 12,470,371,606,602,796
  5. Step 5: Solve for x
    x = 12,470,371,606,602,796/128,862,384.82
  6. Step 6: Final answer
    x = 96,772,783.03

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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.