Home / 258,736,278.40-388,104,417.60-185,798,953.60

Finding the Fourth Proportional to 258,736,278.40, 388,104,417.60 and 185,798,953.60

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Solution

The fourth proportional to 258,736,278.40, 388,104,417.60 and 185,798,953.60 is: 278,698,430.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,736,278.40 : 388,104,417.60 = 185,798,953.60 : x
  2. Step 2: Convert to fraction form
    258,736,278.40/388,104,417.60 = 185,798,953.60/x
  3. Step 3: Cross multiply
    258,736,278.40x = 388,104,417.60 × 185,798,953.60
  4. Step 4: Simplify right side
    258,736,278.40x = 72,109,394,677,617,424
  5. Step 5: Solve for x
    x = 72,109,394,677,617,424/258,736,278.40
  6. Step 6: Final answer
    x = 278,698,430.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.