Home / 500,389,079.92-749,929,927.98-279,051,587.08

Finding the Fourth Proportional to 500,389,079.92, 749,929,927.98 and 279,051,587.08

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Solution

The fourth proportional to 500,389,079.92, 749,929,927.98 and 279,051,587.08 is: 418,212,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,389,079.92 : 749,929,927.98 = 279,051,587.08 : x
  2. Step 2: Convert to fraction form
    500,389,079.92/749,929,927.98 = 279,051,587.08/x
  3. Step 3: Cross multiply
    500,389,079.92x = 749,929,927.98 × 279,051,587.08
  4. Step 4: Simplify right side
    500,389,079.92x = 209,269,136,601,609,088
  5. Step 5: Solve for x
    x = 209,269,136,601,609,088/500,389,079.92
  6. Step 6: Final answer
    x = 418,212,836.77

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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.