Home / 514,946,008.40-772,419,012.60-191,763,006.80

Finding the Fourth Proportional to 514,946,008.40, 772,419,012.60 and 191,763,006.80

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Solution

The fourth proportional to 514,946,008.40, 772,419,012.60 and 191,763,006.80 is: 287,644,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,946,008.40 : 772,419,012.60 = 191,763,006.80 : x
  2. Step 2: Convert to fraction form
    514,946,008.40/772,419,012.60 = 191,763,006.80/x
  3. Step 3: Cross multiply
    514,946,008.40x = 772,419,012.60 × 191,763,006.80
  4. Step 4: Simplify right side
    514,946,008.40x = 148,121,392,365,663,104
  5. Step 5: Solve for x
    x = 148,121,392,365,663,104/514,946,008.40
  6. Step 6: Final answer
    x = 287,644,510.20

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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.