Home / 514,536,121.80-710,064,332.76-279,586,781.48

Finding the Fourth Proportional to 514,536,121.80, 710,064,332.76 and 279,586,781.48

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Solution

The fourth proportional to 514,536,121.80, 710,064,332.76 and 279,586,781.48 is: 385,832,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,536,121.80 : 710,064,332.76 = 279,586,781.48 : x
  2. Step 2: Convert to fraction form
    514,536,121.80/710,064,332.76 = 279,586,781.48/x
  3. Step 3: Cross multiply
    514,536,121.80x = 710,064,332.76 × 279,586,781.48
  4. Step 4: Simplify right side
    514,536,121.80x = 198,524,601,440,112,128
  5. Step 5: Solve for x
    x = 198,524,601,440,112,128/514,536,121.80
  6. Step 6: Final answer
    x = 385,832,195.31

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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.