Home / 128,684,290.42-177,585,582.63-69,946,919.29

Finding the Fourth Proportional to 128,684,290.42, 177,585,582.63 and 69,946,919.29

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Solution

The fourth proportional to 128,684,290.42, 177,585,582.63 and 69,946,919.29 is: 96,527,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,684,290.42 : 177,585,582.63 = 69,946,919.29 : x
  2. Step 2: Convert to fraction form
    128,684,290.42/177,585,582.63 = 69,946,919.29/x
  3. Step 3: Cross multiply
    128,684,290.42x = 177,585,582.63 × 69,946,919.29
  4. Step 4: Simplify right side
    128,684,290.42x = 12,421,564,415,288,236
  5. Step 5: Solve for x
    x = 12,421,564,415,288,236/128,684,290.42
  6. Step 6: Final answer
    x = 96,527,434.50

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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.