Home / 139,521,614.40-209,282,421.60-109,255,348.80

Finding the Fourth Proportional to 139,521,614.40, 209,282,421.60 and 109,255,348.80

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Solution

The fourth proportional to 139,521,614.40, 209,282,421.60 and 109,255,348.80 is: 163,883,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,521,614.40 : 209,282,421.60 = 109,255,348.80 : x
  2. Step 2: Convert to fraction form
    139,521,614.40/209,282,421.60 = 109,255,348.80/x
  3. Step 3: Cross multiply
    139,521,614.40x = 209,282,421.60 × 109,255,348.80
  4. Step 4: Simplify right side
    139,521,614.40x = 22,865,223,969,616,652
  5. Step 5: Solve for x
    x = 22,865,223,969,616,652/139,521,614.40
  6. Step 6: Final answer
    x = 163,883,023.20

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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.