Home / 243,648,021.40-365,472,032.10-207,368,315.80

Finding the Fourth Proportional to 243,648,021.40, 365,472,032.10 and 207,368,315.80

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Solution

The fourth proportional to 243,648,021.40, 365,472,032.10 and 207,368,315.80 is: 311,052,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,648,021.40 : 365,472,032.10 = 207,368,315.80 : x
  2. Step 2: Convert to fraction form
    243,648,021.40/365,472,032.10 = 207,368,315.80/x
  3. Step 3: Cross multiply
    243,648,021.40x = 365,472,032.10 × 207,368,315.80
  4. Step 4: Simplify right side
    243,648,021.40x = 75,787,319,768,580,544
  5. Step 5: Solve for x
    x = 75,787,319,768,580,544/243,648,021.40
  6. Step 6: Final answer
    x = 311,052,473.70

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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.