Home / 782,460,416.70-1,173,690,625.05-419,663,360.70

Finding the Fourth Proportional to 782,460,416.70, 1,173,690,625.05 and 419,663,360.70

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Solution

The fourth proportional to 782,460,416.70, 1,173,690,625.05 and 419,663,360.70 is: 629,495,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,460,416.70 : 1,173,690,625.05 = 419,663,360.70 : x
  2. Step 2: Convert to fraction form
    782,460,416.70/1,173,690,625.05 = 419,663,360.70/x
  3. Step 3: Cross multiply
    782,460,416.70x = 1,173,690,625.05 × 419,663,360.70
  4. Step 4: Simplify right side
    782,460,416.70x = 492,554,952,130,566,592
  5. Step 5: Solve for x
    x = 492,554,952,130,566,592/782,460,416.70
  6. Step 6: Final answer
    x = 629,495,041.05

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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.