Home / 389,583,137.50-537,641,629.59-215,742,881.50

Finding the Fourth Proportional to 389,583,137.50, 537,641,629.59 and 215,742,881.50

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Solution

The fourth proportional to 389,583,137.50, 537,641,629.59 and 215,742,881.50 is: 297,734,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,583,137.50 : 537,641,629.59 = 215,742,881.50 : x
  2. Step 2: Convert to fraction form
    389,583,137.50/537,641,629.59 = 215,742,881.50/x
  3. Step 3: Cross multiply
    389,583,137.50x = 537,641,629.59 × 215,742,881.50
  4. Step 4: Simplify right side
    389,583,137.50x = 115,992,354,382,102,272
  5. Step 5: Solve for x
    x = 115,992,354,382,102,272/389,583,137.50
  6. Step 6: Final answer
    x = 297,734,535.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.