Home / 208,023,814.40-312,035,721.60-100,528,390.40

Finding the Fourth Proportional to 208,023,814.40, 312,035,721.60 and 100,528,390.40

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Solution

The fourth proportional to 208,023,814.40, 312,035,721.60 and 100,528,390.40 is: 150,792,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,023,814.40 : 312,035,721.60 = 100,528,390.40 : x
  2. Step 2: Convert to fraction form
    208,023,814.40/312,035,721.60 = 100,528,390.40/x
  3. Step 3: Cross multiply
    208,023,814.40x = 312,035,721.60 × 100,528,390.40
  4. Step 4: Simplify right side
    208,023,814.40x = 31,368,448,839,750,516
  5. Step 5: Solve for x
    x = 31,368,448,839,750,516/208,023,814.40
  6. Step 6: Final answer
    x = 150,792,585.60

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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.