Home / 939,810,661.18-1,296,862,787.02-543,359,199.58

Finding the Fourth Proportional to 939,810,661.18, 1,296,862,787.02 and 543,359,199.58

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Solution

The fourth proportional to 939,810,661.18, 1,296,862,787.02 and 543,359,199.58 is: 749,791,798.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,810,661.18 : 1,296,862,787.02 = 543,359,199.58 : x
  2. Step 2: Convert to fraction form
    939,810,661.18/1,296,862,787.02 = 543,359,199.58/x
  3. Step 3: Cross multiply
    939,810,661.18x = 1,296,862,787.02 × 543,359,199.58
  4. Step 4: Simplify right side
    939,810,661.18x = 704,662,325,920,275,200
  5. Step 5: Solve for x
    x = 704,662,325,920,275,200/939,810,661.18
  6. Step 6: Final answer
    x = 749,791,798.53

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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.