Home / 289,707,352.80-434,638,011.60-125,874,808.80

Finding the Fourth Proportional to 289,707,352.80, 434,638,011.60 and 125,874,808.80

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Solution

The fourth proportional to 289,707,352.80, 434,638,011.60 and 125,874,808.80 is: 188,845,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,707,352.80 : 434,638,011.60 = 125,874,808.80 : x
  2. Step 2: Convert to fraction form
    289,707,352.80/434,638,011.60 = 125,874,808.80/x
  3. Step 3: Cross multiply
    289,707,352.80x = 434,638,011.60 × 125,874,808.80
  4. Step 4: Simplify right side
    289,707,352.80x = 54,709,976,607,362,184
  5. Step 5: Solve for x
    x = 54,709,976,607,362,184/289,707,352.80
  6. Step 6: Final answer
    x = 188,845,661.25

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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.