Home / 514,761,393.20-771,495,835.39-278,401,493.00

Finding the Fourth Proportional to 514,761,393.20, 771,495,835.39 and 278,401,493.00

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Solution

The fourth proportional to 514,761,393.20, 771,495,835.39 and 278,401,493.00 is: 417,252,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,761,393.20 : 771,495,835.39 = 278,401,493.00 : x
  2. Step 2: Convert to fraction form
    514,761,393.20/771,495,835.39 = 278,401,493.00/x
  3. Step 3: Cross multiply
    514,761,393.20x = 771,495,835.39 × 278,401,493.00
  4. Step 4: Simplify right side
    514,761,393.20x = 214,785,592,417,090,976
  5. Step 5: Solve for x
    x = 214,785,592,417,090,976/514,761,393.20
  6. Step 6: Final answer
    x = 417,252,721.86

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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.