Home / 128,684,292.42-177,585,585.39-69,946,921.29

Finding the Fourth Proportional to 128,684,292.42, 177,585,585.39 and 69,946,921.29

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Solution

The fourth proportional to 128,684,292.42, 177,585,585.39 and 69,946,921.29 is: 96,527,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,684,292.42 : 177,585,585.39 = 69,946,921.29 : x
  2. Step 2: Convert to fraction form
    128,684,292.42/177,585,585.39 = 69,946,921.29/x
  3. Step 3: Cross multiply
    128,684,292.42x = 177,585,585.39 × 69,946,921.29
  4. Step 4: Simplify right side
    128,684,292.42x = 12,421,564,963,512,904
  5. Step 5: Solve for x
    x = 12,421,564,963,512,904/128,684,292.42
  6. Step 6: Final answer
    x = 96,527,437.26

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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.