Home / 368,412,314.76-508,453,576.53-209,681,032.98

Finding the Fourth Proportional to 368,412,314.76, 508,453,576.53 and 209,681,032.98

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Solution

The fourth proportional to 368,412,314.76, 508,453,576.53 and 209,681,032.98 is: 289,385,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,412,314.76 : 508,453,576.53 = 209,681,032.98 : x
  2. Step 2: Convert to fraction form
    368,412,314.76/508,453,576.53 = 209,681,032.98/x
  3. Step 3: Cross multiply
    368,412,314.76x = 508,453,576.53 × 209,681,032.98
  4. Step 4: Simplify right side
    368,412,314.76x = 106,613,071,149,185,872
  5. Step 5: Solve for x
    x = 106,613,071,149,185,872/368,412,314.76
  6. Step 6: Final answer
    x = 289,385,199.35

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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.