Home / 686,636,254.40-1,029,954,381.60-611,809,361.60

Finding the Fourth Proportional to 686,636,254.40, 1,029,954,381.60 and 611,809,361.60

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Solution

The fourth proportional to 686,636,254.40, 1,029,954,381.60 and 611,809,361.60 is: 917,714,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,636,254.40 : 1,029,954,381.60 = 611,809,361.60 : x
  2. Step 2: Convert to fraction form
    686,636,254.40/1,029,954,381.60 = 611,809,361.60/x
  3. Step 3: Cross multiply
    686,636,254.40x = 1,029,954,381.60 × 611,809,361.60
  4. Step 4: Simplify right side
    686,636,254.40x = 630,135,732,683,818,880
  5. Step 5: Solve for x
    x = 630,135,732,683,818,880/686,636,254.40
  6. Step 6: Final answer
    x = 917,714,042.40

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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.