Home / 192,300,849.18-265,466,671.05-128,830,476.78

Finding the Fourth Proportional to 192,300,849.18, 265,466,671.05 and 128,830,476.78

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Solution

The fourth proportional to 192,300,849.18, 265,466,671.05 and 128,830,476.78 is: 177,847,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,300,849.18 : 265,466,671.05 = 128,830,476.78 : x
  2. Step 2: Convert to fraction form
    192,300,849.18/265,466,671.05 = 128,830,476.78/x
  3. Step 3: Cross multiply
    192,300,849.18x = 265,466,671.05 × 128,830,476.78
  4. Step 4: Simplify right side
    192,300,849.18x = 34,200,197,800,570,924
  5. Step 5: Solve for x
    x = 34,200,197,800,570,924/192,300,849.18
  6. Step 6: Final answer
    x = 177,847,357.13

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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.