Home / 789,877,487.22-1,090,034,573.71-437,446,089.51

Finding the Fourth Proportional to 789,877,487.22, 1,090,034,573.71 and 437,446,089.51

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Solution

The fourth proportional to 789,877,487.22, 1,090,034,573.71 and 437,446,089.51 is: 603,677,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,877,487.22 : 1,090,034,573.71 = 437,446,089.51 : x
  2. Step 2: Convert to fraction form
    789,877,487.22/1,090,034,573.71 = 437,446,089.51/x
  3. Step 3: Cross multiply
    789,877,487.22x = 1,090,034,573.71 × 437,446,089.51
  4. Step 4: Simplify right side
    789,877,487.22x = 476,831,361,700,139,328
  5. Step 5: Solve for x
    x = 476,831,361,700,139,328/789,877,487.22
  6. Step 6: Final answer
    x = 603,677,620.16

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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.