Home / 215,793,781-297,822,692.29-141,516,831.22

Finding the Fourth Proportional to 215,793,781, 297,822,692.29 and 141,516,831.22

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Solution

The fourth proportional to 215,793,781, 297,822,692.29 and 141,516,831.22 is: 195,311,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,793,781 : 297,822,692.29 = 141,516,831.22 : x
  2. Step 2: Convert to fraction form
    215,793,781/297,822,692.29 = 141,516,831.22/x
  3. Step 3: Cross multiply
    215,793,781x = 297,822,692.29 × 141,516,831.22
  4. Step 4: Simplify right side
    215,793,781x = 42,146,923,678,289,928
  5. Step 5: Solve for x
    x = 42,146,923,678,289,928/215,793,781
  6. Step 6: Final answer
    x = 195,311,113.61

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Why These Related Problems?

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