Home / 313,129,326.79-469,690,999.41-190,341,545.86

Finding the Fourth Proportional to 313,129,326.79, 469,690,999.41 and 190,341,545.86

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Solution

The fourth proportional to 313,129,326.79, 469,690,999.41 and 190,341,545.86 is: 285,510,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,129,326.79 : 469,690,999.41 = 190,341,545.86 : x
  2. Step 2: Convert to fraction form
    313,129,326.79/469,690,999.41 = 190,341,545.86/x
  3. Step 3: Cross multiply
    313,129,326.79x = 469,690,999.41 × 190,341,545.86
  4. Step 4: Simplify right side
    313,129,326.79x = 89,401,710,905,528,640
  5. Step 5: Solve for x
    x = 89,401,710,905,528,640/313,129,326.79
  6. Step 6: Final answer
    x = 285,510,500.79

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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.