Home / 1,517,131,788,830.80-2,275,831,465,434.30-428,038,315,032.18

Finding the Fourth Proportional to 1,517,131,788,830.80, 2,275,831,465,434.30 and 428,038,315,032.18

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Solution

The fourth proportional to 1,517,131,788,830.80, 2,275,831,465,434.30 and 428,038,315,032.18 is: 642,095,217,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,830.80 : 2,275,831,465,434.30 = 428,038,315,032.18 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,830.80/2,275,831,465,434.30 = 428,038,315,032.18/x
  3. Step 3: Cross multiply
    1,517,131,788,830.80x = 2,275,831,465,434.30 × 428,038,315,032.18
  4. Step 4: Simplify right side
    1,517,131,788,830.80x = 974,143,065,761,714,664,374,272
  5. Step 5: Solve for x
    x = 974,143,065,761,714,664,374,272/1,517,131,788,830.80
  6. Step 6: Final answer
    x = 642,095,217,392.06

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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.